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man/orig/wget

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WGET(1) GNU Wget WGET(1)

Содержание

[править] NAME

      Wget - The non-interactive network downloader.

[править] SYNOPSIS

      wget [option]... [URL]...

[править] DESCRIPTION

      GNU Wget is a free utility for non-interactive download of files from
      the Web.  It supports HTTP, HTTPS, and FTP protocols, as well as
      retrieval through HTTP proxies.
      Wget is non-interactive, meaning that it can work in the background,
      while the user is not logged on.  This allows you to start a retrieval
      and disconnect from the system, letting Wget finish the work.  By
      contrast, most of the Web browsers require constant user's presence,
      which can be a great hindrance when transferring a lot of data.
      Wget can follow links in HTML, XHTML, and CSS pages, to create local
      versions of remote web sites, fully recreating the directory structure
      of the original site.  This is sometimes referred to as "recursive
      downloading."  While doing that, Wget respects the Robot Exclusion
      Standard (/robots.txt).  Wget can be instructed to convert the links in
      downloaded files to point at the local files, for offline viewing.
      Wget has been designed for robustness over slow or unstable network
      connections; if a download fails due to a network problem, it will keep
      retrying until the whole file has been retrieved.  If the server
      supports regetting, it will instruct the server to continue the
      download from where it left off.

[править] OPTIONS

  Option Syntax
      Since Wget uses GNU getopt to process command-line arguments, every
      option has a long form along with the short one.  Long options are more
      convenient to remember, but take time to type.  You may freely mix
      different option styles, or specify options after the command-line
      arguments.  Thus you may write:
              wget -r --tries=10 http://fly.srk.fer.hr/ -o log
      The space between the option accepting an argument and the argument may
      be omitted.  Instead of -o log you can write -olog.
      You may put several options that do not require arguments together,
      like:
              wget -drc <URL>
      This is completely equivalent to:
              wget -d -r -c <URL>
      Since the options can be specified after the arguments, you may
      terminate them with --.  So the following will try to download URL -x,
      reporting failure to log:
              wget -o log -- -x
      The options that accept comma-separated lists all respect the
      convention that specifying an empty list clears its value.  This can be
      useful to clear the .wgetrc settings.  For instance, if your .wgetrc
      sets "exclude_directories" to /cgi-bin, the following example will
      first reset it, and then set it to exclude /~nobody and /~somebody.
      You can also clear the lists in .wgetrc.
              wget -X " -X /~nobody,/~somebody
      Most options that do not accept arguments are boolean options, so named
      because their state can be captured with a yes-or-no ("boolean")
      variable.  For example, --follow-ftp tells Wget to follow FTP links
      from HTML files and, on the other hand, --no-glob tells it not to
      perform file globbing on FTP URLs.  A boolean option is either
      affirmative or negative (beginning with --no).  All such options share
      several properties.
      Unless stated otherwise, it is assumed that the default behavior is the
      opposite of what the option accomplishes.  For example, the documented
      existence of --follow-ftp assumes that the default is to not follow FTP
      links from HTML pages.
      Affirmative options can be negated by prepending the --no- to the
      option name; negative options can be negated by omitting the --no-
      prefix.  This might seem superfluous---if the default for an
      affirmative option is to not do something, then why provide a way to
      explicitly turn it off?  But the startup file may in fact change the
      default.  For instance, using "follow_ftp = on" in .wgetrc makes Wget
      follow FTP links by default, and using --no-follow-ftp is the only way
      to restore the factory default from the command line.
  Basic Startup Options
      -V
      --version
          Display the version of Wget.
      -h
      --help
          Print a help message describing all of Wget's command-line options.
      -b
      --background
          Go to background immediately after startup.  If no output file is
          specified via the -o, output is redirected to wget-log.
      -e command
      --execute command
          Execute command as if it were a part of .wgetrc.  A command thus
          invoked will be executed after the commands in .wgetrc, thus taking
          precedence over them.  If you need to specify more than one wgetrc
          command, use multiple instances of -e.
  Logging and Input File Options
      -o logfile
      --output-file=logfile
          Log all messages to logfile.  The messages are normally reported to
          standard error.
      -a logfile
      --append-output=logfile
          Append to logfile.  This is the same as -o, only it appends to
          logfile instead of overwriting the old log file.  If logfile does
          not exist, a new file is created.
      -d
      --debug
          Turn on debug output, meaning various information important to the
          developers of Wget if it does not work properly.  Your system
          administrator may have chosen to compile Wget without debug
          support, in which case -d will not work.  Please note that
          compiling with debug support is always safe---Wget compiled with
          the debug support will not print any debug info unless requested
          with -d.
      -q
      --quiet
          Turn off Wget's output.
      -v
      --verbose
          Turn on verbose output, with all the available data.  The default
          output is verbose.
      -nv
      --no-verbose
          Turn off verbose without being completely quiet (use -q for that),
          which means that error messages and basic information still get
          printed.
      -i file
      --input-file=file
          Read URLs from a local or external file.  If - is specified as
          file, URLs are read from the standard input.  (Use ./- to read from
          a file literally named -.)
          If this function is used, no URLs need be present on the command
          line.  If there are URLs both on the command line and in an input
          file, those on the command lines will be the first ones to be
          retrieved.  If --force-html is not specified, then file should
          consist of a series of URLs, one per line.
          However, if you specify --force-html, the document will be regarded
          as html.  In that case you may have problems with relative links,
          which you can solve either by adding "<base href="url">" to the
          documents or by specifying --base=url on the command line.
          If the file is an external one, the document will be automatically
          treated as html if the Content-Type matches text/html.
          Furthermore, the file's location will be implicitly used as base
          href if none was specified.
      -F
      --force-html
          When input is read from a file, force it to be treated as an HTML
          file.  This enables you to retrieve relative links from existing
          HTML files on your local disk, by adding "<base href="url">" to
          HTML, or using the --base command-line option.
      -B URL
      --base=URL
          Resolves relative links using URL as the point of reference, when
          reading links from an HTML file specified via the -i/--input-file
          option (together with --force-html, or when the input file was
          fetched remotely from a server describing it as HTML). This is
          equivalent to the presence of a "BASE" tag in the HTML input file,
          with URL as the value for the "href" attribute.
          For instance, if you specify http://foo/bar/a.html for URL, and
          Wget reads ../baz/b.html from the input file, it would be resolved
          to http://foo/baz/b.html.
      --config=FILE
          Specify the location of a startup file you wish to use.
  Download Options
      --bind-address=ADDRESS
          When making client TCP/IP connections, bind to ADDRESS on the local
          machine.  ADDRESS may be specified as a hostname or IP address.
          This option can be useful if your machine is bound to multiple IPs.
      -t number
      --tries=number
          Set number of retries to number.  Specify 0 or inf for infinite
          retrying.  The default is to retry 20 times, with the exception of
          fatal errors like "connection refused" or "not found" (404), which
          are not retried.
      -O file
      --output-document=file
          The documents will not be written to the appropriate files, but all
          will be concatenated together and written to file.  If - is used as
          file, documents will be printed to standard output, disabling link
          conversion.  (Use ./- to print to a file literally named -.)
          Use of -O is not intended to mean simply "use the name file instead
          of the one in the URL;" rather, it is analogous to shell
          redirection: wget -O file http://foo is intended to work like wget
          -O - http://foo > file; file will be truncated immediately, and all
          downloaded content will be written there.
          For this reason, -N (for timestamp-checking) is not supported in
          combination with -O: since file is always newly created, it will
          always have a very new timestamp. A warning will be issued if this
          combination is used.
          Similarly, using -r or -p with -O may not work as you expect: Wget
          won't just download the first file to file and then download the
          rest to their normal names: all downloaded content will be placed
          in file. This was disabled in version 1.11, but has been reinstated
          (with a warning) in 1.11.2, as there are some cases where this
          behavior can actually have some use.
          Note that a combination with -k is only permitted when downloading
          a single document, as in that case it will just convert all
          relative URIs to external ones; -k makes no sense for multiple URIs
          when they're all being downloaded to a single file; -k can be used
          only when the output is a regular file.
      -nc
      --no-clobber
          If a file is downloaded more than once in the same directory,
          Wget's behavior depends on a few options, including -nc.  In
          certain cases, the local file will be clobbered, or overwritten,
          upon repeated download.  In other cases it will be preserved.
          When running Wget without -N, -nc, -r, or -p, downloading the same
          file in the same directory will result in the original copy of file
          being preserved and the second copy being named file.1.  If that
          file is downloaded yet again, the third copy will be named file.2,
          and so on.  (This is also the behavior with -nd, even if -r or -p
          are in effect.)  When -nc is specified, this behavior is
          suppressed, and Wget will refuse to download newer copies of file.
          Therefore, ""no-clobber"" is actually a misnomer in this
          mode---it's not clobbering that's prevented (as the numeric
          suffixes were already preventing clobbering), but rather the
          multiple version saving that's prevented.
          When running Wget with -r or -p, but without -N, -nd, or -nc, re-
          downloading a file will result in the new copy simply overwriting
          the old.  Adding -nc will prevent this behavior, instead causing
          the original version to be preserved and any newer copies on the
          server to be ignored.
          When running Wget with -N, with or without -r or -p, the decision
          as to whether or not to download a newer copy of a file depends on
          the local and remote timestamp and size of the file.  -nc may not
          be specified at the same time as -N.
          Note that when -nc is specified, files with the suffixes .html or
          .htm will be loaded from the local disk and parsed as if they had
          been retrieved from the Web.
      -c
      --continue
          Continue getting a partially-downloaded file.  This is useful when
          you want to finish up a download started by a previous instance of
          Wget, or by another program.  For instance:
                  wget -c ftp://sunsite.doc.ic.ac.uk/ls-lR.Z
          If there is a file named ls-lR.Z in the current directory, Wget
          will assume that it is the first portion of the remote file, and
          will ask the server to continue the retrieval from an offset equal
          to the length of the local file.
          Note that you don't need to specify this option if you just want
          the current invocation of Wget to retry downloading a file should
          the connection be lost midway through.  This is the default
          behavior.  -c only affects resumption of downloads started prior to
          this invocation of Wget, and whose local files are still sitting
          around.
          Without -c, the previous example would just download the remote
          file to ls-lR.Z.1, leaving the truncated ls-lR.Z file alone.
          Beginning with Wget 1.7, if you use -c on a non-empty file, and it
          turns out that the server does not support continued downloading,
          Wget will refuse to start the download from scratch, which would
          effectively ruin existing contents.  If you really want the
          download to start from scratch, remove the file.
          Also beginning with Wget 1.7, if you use -c on a file which is of
          equal size as the one on the server, Wget will refuse to download
          the file and print an explanatory message.  The same happens when
          the file is smaller on the server than locally (presumably because
          it was changed on the server since your last download
          attempt)---because "continuing" is not meaningful, no download
          occurs.
          On the other side of the coin, while using -c, any file that's
          bigger on the server than locally will be considered an incomplete
          download and only "(length(remote) - length(local))" bytes will be
          downloaded and tacked onto the end of the local file.  This
          behavior can be desirable in certain cases---for instance, you can
          use wget -c to download just the new portion that's been appended
          to a data collection or log file.
          However, if the file is bigger on the server because it's been
          changed, as opposed to just appended to, you'll end up with a
          garbled file.  Wget has no way of verifying that the local file is
          really a valid prefix of the remote file.  You need to be
          especially careful of this when using -c in conjunction with -r,
          since every file will be considered as an "incomplete download"
          candidate.
          Another instance where you'll get a garbled file if you try to use
          -c is if you have a lame HTTP proxy that inserts a "transfer
          interrupted" string into the local file.  In the future a
          "rollback" option may be added to deal with this case.
          Note that -c only works with FTP servers and with HTTP servers that
          support the "Range" header.
      --progress=type
          Select the type of the progress indicator you wish to use.  Legal
          indicators are "dot" and "bar".
          The "bar" indicator is used by default.  It draws an ASCII progress
          bar graphics (a.k.a "thermometer" display) indicating the status of
          retrieval.  If the output is not a TTY, the "dot" bar will be used
          by default.
          Use --progress=dot to switch to the "dot" display.  It traces the
          retrieval by printing dots on the screen, each dot representing a
          fixed amount of downloaded data.
          When using the dotted retrieval, you may also set the style by
          specifying the type as dot:style.  Different styles assign
          different meaning to one dot.  With the "default" style each dot
          represents 1K, there are ten dots in a cluster and 50 dots in a
          line.  The "binary" style has a more "computer"-like
          orientation---8K dots, 16-dots clusters and 48 dots per line (which
          makes for 384K lines).  The "mega" style is suitable for
          downloading very large files---each dot represents 64K retrieved,
          there are eight dots in a cluster, and 48 dots on each line (so
          each line contains 3M).
          Note that you can set the default style using the "progress"
          command in .wgetrc.  That setting may be overridden from the
          command line.  The exception is that, when the output is not a TTY,
          the "dot" progress will be favored over "bar".  To force the bar
          output, use --progress=bar:force.
      -N
      --timestamping
          Turn on time-stamping.
      --no-use-server-timestamps
          Don't set the local file's timestamp by the one on the server.
          By default, when a file is downloaded, it's timestamps are set to
          match those from the remote file. This allows the use of
          --timestamping on subsequent invocations of wget. However, it is
          sometimes useful to base the local file's timestamp on when it was
          actually downloaded; for that purpose, the
          --no-use-server-timestamps option has been provided.
      -S
      --server-response
          Print the headers sent by HTTP servers and responses sent by FTP
          servers.
      --spider
          When invoked with this option, Wget will behave as a Web spider,
          which means that it will not download the pages, just check that
          they are there.  For example, you can use Wget to check your
          bookmarks:
                  wget --spider --force-html -i bookmarks.html
          This feature needs much more work for Wget to get close to the
          functionality of real web spiders.
      -T seconds
      --timeout=seconds
          Set the network timeout to seconds seconds.  This is equivalent to
          specifying --dns-timeout, --connect-timeout, and --read-timeout,
          all at the same time.
          When interacting with the network, Wget can check for timeout and
          abort the operation if it takes too long.  This prevents anomalies
          like hanging reads and infinite connects.  The only timeout enabled
          by default is a 900-second read timeout.  Setting a timeout to 0
          disables it altogether.  Unless you know what you are doing, it is
          best not to change the default timeout settings.
          All timeout-related options accept decimal values, as well as
          subsecond values.  For example, 0.1 seconds is a legal (though
          unwise) choice of timeout.  Subsecond timeouts are useful for
          checking server response times or for testing network latency.
      --dns-timeout=seconds
          Set the DNS lookup timeout to seconds seconds.  DNS lookups that
          don't complete within the specified time will fail.  By default,
          there is no timeout on DNS lookups, other than that implemented by
          system libraries.
      --connect-timeout=seconds
          Set the connect timeout to seconds seconds.  TCP connections that
          take longer to establish will be aborted.  By default, there is no
          connect timeout, other than that implemented by system libraries.
      --read-timeout=seconds
          Set the read (and write) timeout to seconds seconds.  The "time" of
          this timeout refers to idle time: if, at any point in the download,
          no data is received for more than the specified number of seconds,
          reading fails and the download is restarted.  This option does not
          directly affect the duration of the entire download.
          Of course, the remote server may choose to terminate the connection
          sooner than this option requires.  The default read timeout is 900
          seconds.
      --limit-rate=amount
          Limit the download speed to amount bytes per second.  Amount may be
          expressed in bytes, kilobytes with the k suffix, or megabytes with
          the m suffix.  For example, --limit-rate=20k will limit the
          retrieval rate to 20KB/s.  This is useful when, for whatever
          reason, you don't want Wget to consume the entire available
          bandwidth.
          This option allows the use of decimal numbers, usually in
          conjunction with power suffixes; for example, --limit-rate=2.5k is
          a legal value.
          Note that Wget implements the limiting by sleeping the appropriate
          amount of time after a network read that took less time than
          specified by the rate.  Eventually this strategy causes the TCP
          transfer to slow down to approximately the specified rate.
          However, it may take some time for this balance to be achieved, so
          don't be surprised if limiting the rate doesn't work well with very
          small files.
      -w seconds
      --wait=seconds
          Wait the specified number of seconds between the retrievals.  Use
          of this option is recommended, as it lightens the server load by
          making the requests less frequent.  Instead of in seconds, the time
          can be specified in minutes using the "m" suffix, in hours using
          "h" suffix, or in days using "d" suffix.
          Specifying a large value for this option is useful if the network
          or the destination host is down, so that Wget can wait long enough
          to reasonably expect the network error to be fixed before the
          retry.  The waiting interval specified by this function is
          influenced by "--random-wait", which see.
      --waitretry=seconds
          If you don't want Wget to wait between every retrieval, but only
          between retries of failed downloads, you can use this option.  Wget
          will use linear backoff, waiting 1 second after the first failure
          on a given file, then waiting 2 seconds after the second failure on
          that file, up to the maximum number of seconds you specify.
          By default, Wget will assume a value of 10 seconds.
      --random-wait
          Some web sites may perform log analysis to identify retrieval
          programs such as Wget by looking for statistically significant
          similarities in the time between requests. This option causes the
          time between requests to vary between 0.5 and 1.5 * wait seconds,
          where wait was specified using the --wait option, in order to mask
          Wget's presence from such analysis.
          A 2001 article in a publication devoted to development on a popular
          consumer platform provided code to perform this analysis on the
          fly.  Its author suggested blocking at the class C address level to
          ensure automated retrieval programs were blocked despite changing
          DHCP-supplied addresses.
          The --random-wait option was inspired by this ill-advised
          recommendation to block many unrelated users from a web site due to
          the actions of one.
      --no-proxy
          Don't use proxies, even if the appropriate *_proxy environment
          variable is defined.
      -Q quota
      --quota=quota
          Specify download quota for automatic retrievals.  The value can be
          specified in bytes (default), kilobytes (with k suffix), or
          megabytes (with m suffix).
          Note that quota will never affect downloading a single file.  So if
          you specify wget -Q10k ftp://wuarchive.wustl.edu/ls-lR.gz, all of
          the ls-lR.gz will be downloaded.  The same goes even when several
          URLs are specified on the command-line.  However, quota is
          respected when retrieving either recursively, or from an input
          file.  Thus you may safely type wget -Q2m -i sites---download will
          be aborted when the quota is exceeded.
          Setting quota to 0 or to inf unlimits the download quota.
      --no-dns-cache
          Turn off caching of DNS lookups.  Normally, Wget remembers the IP
          addresses it looked up from DNS so it doesn't have to repeatedly
          contact the DNS server for the same (typically small) set of hosts
          it retrieves from.  This cache exists in memory only; a new Wget
          run will contact DNS again.
          However, it has been reported that in some situations it is not
          desirable to cache host names, even for the duration of a short-
          running application like Wget.  With this option Wget issues a new
          DNS lookup (more precisely, a new call to "gethostbyname" or
          "getaddrinfo") each time it makes a new connection.  Please note
          that this option will not affect caching that might be performed by
          the resolving library or by an external caching layer, such as
          NSCD.
          If you don't understand exactly what this option does, you probably
          won't need it.
      --restrict-file-names=modes
          Change which characters found in remote URLs must be escaped during
          generation of local filenames.  Characters that are restricted by
          this option are escaped, i.e. replaced with %HH, where HH is the
          hexadecimal number that corresponds to the restricted character.
          This option may also be used to force all alphabetical cases to be
          either lower- or uppercase.
          By default, Wget escapes the characters that are not valid or safe
          as part of file names on your operating system, as well as control
          characters that are typically unprintable.  This option is useful
          for changing these defaults, perhaps because you are downloading to
          a non-native partition, or because you want to disable escaping of
          the control characters, or you want to further restrict characters
          to only those in the ASCII range of values.
          The modes are a comma-separated set of text values. The acceptable
          values are unix, windows, nocontrol, ascii, lowercase, and
          uppercase. The values unix and windows are mutually exclusive (one
          will override the other), as are lowercase and uppercase. Those
          last are special cases, as they do not change the set of characters
          that would be escaped, but rather force local file paths to be
          converted either to lower- or uppercase.
          When "unix" is specified, Wget escapes the character / and the
          control characters in the ranges 0--31 and 128--159.  This is the
          default on Unix-like operating systems.
          When "windows" is given, Wget escapes the characters \, |, /, :, ?,
          ", *, <, >, and the control characters in the ranges 0--31 and
          128--159.  In addition to this, Wget in Windows mode uses + instead
          of : to separate host and port in local file names, and uses @
          instead of ? to separate the query portion of the file name from
          the rest.  Therefore, a URL that would be saved as
          www.xemacs.org:4300/search.pl?input=blah in Unix mode would be
          saved as www.xemacs.org+4300/search.pl@input=blah in Windows mode.
          This mode is the default on Windows.
          If you specify nocontrol, then the escaping of the control
          characters is also switched off. This option may make sense when
          you are downloading URLs whose names contain UTF-8 characters, on a
          system which can save and display filenames in UTF-8 (some possible
          byte values used in UTF-8 byte sequences fall in the range of
          values designated by Wget as "controls").
          The ascii mode is used to specify that any bytes whose values are
          outside the range of ASCII characters (that is, greater than 127)
          shall be escaped. This can be useful when saving filenames whose
          encoding does not match the one used locally.
      -4
      --inet4-only
      -6
      --inet6-only
          Force connecting to IPv4 or IPv6 addresses.  With --inet4-only or
          -4, Wget will only connect to IPv4 hosts, ignoring AAAA records in
          DNS, and refusing to connect to IPv6 addresses specified in URLs.
          Conversely, with --inet6-only or -6, Wget will only connect to IPv6
          hosts and ignore A records and IPv4 addresses.
          Neither options should be needed normally.  By default, an
          IPv6-aware Wget will use the address family specified by the host's
          DNS record.  If the DNS responds with both IPv4 and IPv6 addresses,
          Wget will try them in sequence until it finds one it can connect
          to.  (Also see "--prefer-family" option described below.)
          These options can be used to deliberately force the use of IPv4 or
          IPv6 address families on dual family systems, usually to aid
          debugging or to deal with broken network configuration.  Only one
          of --inet6-only and --inet4-only may be specified at the same time.
          Neither option is available in Wget compiled without IPv6 support.
      --prefer-family=none/IPv4/IPv6
          When given a choice of several addresses, connect to the addresses
          with specified address family first.  The address order returned by
          DNS is used without change by default.
          This avoids spurious errors and connect attempts when accessing
          hosts that resolve to both IPv6 and IPv4 addresses from IPv4
          networks.  For example, www.kame.net resolves to
          2001:200:0:8002:203:47ff:fea5:3085 and to 203.178.141.194.  When
          the preferred family is "IPv4", the IPv4 address is used first;
          when the preferred family is "IPv6", the IPv6 address is used
          first; if the specified value is "none", the address order returned
          by DNS is used without change.
          Unlike -4 and -6, this option doesn't inhibit access to any address
          family, it only changes the order in which the addresses are
          accessed.  Also note that the reordering performed by this option
          is stable---it doesn't affect order of addresses of the same
          family.  That is, the relative order of all IPv4 addresses and of
          all IPv6 addresses remains intact in all cases.
      --retry-connrefused
          Consider "connection refused" a transient error and try again.
          Normally Wget gives up on a URL when it is unable to connect to the
          site because failure to connect is taken as a sign that the server
          is not running at all and that retries would not help.  This option
          is for mirroring unreliable sites whose servers tend to disappear
          for short periods of time.
      --user=user
      --password=password
          Specify the username user and password password for both FTP and
          HTTP file retrieval.  These parameters can be overridden using the
          --ftp-user and --ftp-password options for FTP connections and the
          --http-user and --http-password options for HTTP connections.
      --ask-password
          Prompt for a password for each connection established. Cannot be
          specified when --password is being used, because they are mutually
          exclusive.
      --no-iri
          Turn off internationalized URI (IRI) support. Use --iri to turn it
          on. IRI support is activated by default.
          You can set the default state of IRI support using the "iri"
          command in .wgetrc. That setting may be overridden from the command
          line.
      --local-encoding=encoding
          Force Wget to use encoding as the default system encoding. That
          affects how Wget converts URLs specified as arguments from locale
          to UTF-8 for IRI support.
          Wget use the function "nl_langinfo()" and then the "CHARSET"
          environment variable to get the locale. If it fails, ASCII is used.
          You can set the default local encoding using the "local_encoding"
          command in .wgetrc. That setting may be overridden from the command
          line.
      --remote-encoding=encoding
          Force Wget to use encoding as the default remote server encoding.
          That affects how Wget converts URIs found in files from remote
          encoding to UTF-8 during a recursive fetch. This options is only
          useful for IRI support, for the interpretation of non-ASCII
          characters.
          For HTTP, remote encoding can be found in HTTP "Content-Type"
          header and in HTML "Content-Type http-equiv" meta tag.
          You can set the default encoding using the "remoteencoding" command
          in .wgetrc. That setting may be overridden from the command line.
      --unlink
          Force Wget to unlink file instead of clobbering existing file. This
          option is useful for downloading to the directory with hardlinks.
  Directory Options
      -nd
      --no-directories
          Do not create a hierarchy of directories when retrieving
          recursively.  With this option turned on, all files will get saved
          to the current directory, without clobbering (if a name shows up
          more than once, the filenames will get extensions .n).
      -x
      --force-directories
          The opposite of -nd---create a hierarchy of directories, even if
          one would not have been created otherwise.  E.g. wget -x
          http://fly.srk.fer.hr/robots.txt will save the downloaded file to
          fly.srk.fer.hr/robots.txt.
      -nH
      --no-host-directories
          Disable generation of host-prefixed directories.  By default,
          invoking Wget with -r http://fly.srk.fer.hr/ will create a
          structure of directories beginning with fly.srk.fer.hr/.  This
          option disables such behavior.
      --protocol-directories
          Use the protocol name as a directory component of local file names.
          For example, with this option, wget -r http://host will save to
          http/host/... rather than just to host/....
      --cut-dirs=number
          Ignore number directory components.  This is useful for getting a
          fine-grained control over the directory where recursive retrieval
          will be saved.
          Take, for example, the directory at
          ftp://ftp.xemacs.org/pub/xemacs/.  If you retrieve it with -r, it
          will be saved locally under ftp.xemacs.org/pub/xemacs/.  While the
          -nH option can remove the ftp.xemacs.org/ part, you are still stuck
          with pub/xemacs.  This is where --cut-dirs comes in handy; it makes
          Wget not "see" number remote directory components.  Here are
          several examples of how --cut-dirs option works.
                  No options        -> ftp.xemacs.org/pub/xemacs/
                  -nH               -> pub/xemacs/
                  -nH --cut-dirs=1  -> xemacs/
                  -nH --cut-dirs=2  -> .
                  --cut-dirs=1      -> ftp.xemacs.org/xemacs/
                  ...
          If you just want to get rid of the directory structure, this option
          is similar to a combination of -nd and -P.  However, unlike -nd,
          --cut-dirs does not lose with subdirectories---for instance, with
          -nH --cut-dirs=1, a beta/ subdirectory will be placed to
          xemacs/beta, as one would expect.
      -P prefix
      --directory-prefix=prefix
          Set directory prefix to prefix.  The directory prefix is the
          directory where all other files and subdirectories will be saved
          to, i.e. the top of the retrieval tree.  The default is . (the
          current directory).
  HTTP Options
      --default-page=name
          Use name as the default file name when it isn't known (i.e., for
          URLs that end in a slash), instead of index.html.
      -E
      --adjust-extension
          If a file of type application/xhtml+xml or text/html is downloaded
          and the URL does not end with the regexp \.[Hh][Tt][Mm][Ll]?, this
          option will cause the suffix .html to be appended to the local
          filename.  This is useful, for instance, when you're mirroring a
          remote site that uses .asp pages, but you want the mirrored pages
          to be viewable on your stock Apache server.  Another good use for
          this is when you're downloading CGI-generated materials.  A URL
          like http://site.com/article.cgi?25 will be saved as
          article.cgi?25.html.
          Note that filenames changed in this way will be re-downloaded every
          time you re-mirror a site, because Wget can't tell that the local
          X.html file corresponds to remote URL X (since it doesn't yet know
          that the URL produces output of type text/html or
          application/xhtml+xml.
          As of version 1.12, Wget will also ensure that any downloaded files
          of type text/css end in the suffix .css, and the option was renamed
          from --html-extension, to better reflect its new behavior. The old
          option name is still acceptable, but should now be considered
          deprecated.
          At some point in the future, this option may well be expanded to
          include suffixes for other types of content, including content
          types that are not parsed by Wget.
      --http-user=user
      --http-password=password
          Specify the username user and password password on an HTTP server.
          According to the type of the challenge, Wget will encode them using
          either the "basic" (insecure), the "digest", or the Windows "NTLM"
          authentication scheme.
          Another way to specify username and password is in the URL itself.
          Either method reveals your password to anyone who bothers to run
          "ps".  To prevent the passwords from being seen, store them in
          .wgetrc or .netrc, and make sure to protect those files from other
          users with "chmod".  If the passwords are really important, do not
          leave them lying in those files either---edit the files and delete
          them after Wget has started the download.
      --no-http-keep-alive
          Turn off the "keep-alive" feature for HTTP downloads.  Normally,
          Wget asks the server to keep the connection open so that, when you
          download more than one document from the same server, they get
          transferred over the same TCP connection.  This saves time and at
          the same time reduces the load on the server.
          This option is useful when, for some reason, persistent (keep-
          alive) connections don't work for you, for example due to a server
          bug or due to the inability of server-side scripts to cope with the
          connections.
      --no-cache
          Disable server-side cache.  In this case, Wget will send the remote
          server an appropriate directive (Pragma: no-cache) to get the file
          from the remote service, rather than returning the cached version.
          This is especially useful for retrieving and flushing out-of-date
          documents on proxy servers.
          Caching is allowed by default.
      --no-cookies
          Disable the use of cookies.  Cookies are a mechanism for
          maintaining server-side state.  The server sends the client a
          cookie using the "Set-Cookie" header, and the client responds with
          the same cookie upon further requests.  Since cookies allow the
          server owners to keep track of visitors and for sites to exchange
          this information, some consider them a breach of privacy.  The
          default is to use cookies; however, storing cookies is not on by
          default.
      --load-cookies file
          Load cookies from file before the first HTTP retrieval.  file is a
          textual file in the format originally used by Netscape's
          cookies.txt file.
          You will typically use this option when mirroring sites that
          require that you be logged in to access some or all of their
          content.  The login process typically works by the web server
          issuing an HTTP cookie upon receiving and verifying your
          credentials.  The cookie is then resent by the browser when
          accessing that part of the site, and so proves your identity.
          Mirroring such a site requires Wget to send the same cookies your
          browser sends when communicating with the site.  This is achieved
          by --load-cookies---simply point Wget to the location of the
          cookies.txt file, and it will send the same cookies your browser
          would send in the same situation.  Different browsers keep textual
          cookie files in different locations:
          Netscape 4.x.
              The cookies are in ~/.netscape/cookies.txt.
          Mozilla and Netscape 6.x.
              Mozilla's cookie file is also named cookies.txt, located
              somewhere under ~/.mozilla, in the directory of your profile.
              The full path usually ends up looking somewhat like
              ~/.mozilla/default/some-weird-string/cookies.txt.
          Internet Explorer.
              You can produce a cookie file Wget can use by using the File
              menu, Import and Export, Export Cookies.  This has been tested
              with Internet Explorer 5; it is not guaranteed to work with
              earlier versions.
          Other browsers.
              If you are using a different browser to create your cookies,
              --load-cookies will only work if you can locate or produce a
              cookie file in the Netscape format that Wget expects.
          If you cannot use --load-cookies, there might still be an
          alternative.  If your browser supports a "cookie manager", you can
          use it to view the cookies used when accessing the site you're
          mirroring.  Write down the name and value of the cookie, and
          manually instruct Wget to send those cookies, bypassing the
          "official" cookie support:
                  wget --no-cookies --header "Cookie: <name>=<value>"
      --save-cookies file
          Save cookies to file before exiting.  This will not save cookies
          that have expired or that have no expiry time (so-called "session
          cookies"), but also see --keep-session-cookies.
      --keep-session-cookies
          When specified, causes --save-cookies to also save session cookies.
          Session cookies are normally not saved because they are meant to be
          kept in memory and forgotten when you exit the browser.  Saving
          them is useful on sites that require you to log in or to visit the
          home page before you can access some pages.  With this option,
          multiple Wget runs are considered a single browser session as far
          as the site is concerned.
          Since the cookie file format does not normally carry session
          cookies, Wget marks them with an expiry timestamp of 0.  Wget's
          --load-cookies recognizes those as session cookies, but it might
          confuse other browsers.  Also note that cookies so loaded will be
          treated as other session cookies, which means that if you want
          --save-cookies to preserve them again, you must use
          --keep-session-cookies again.
      --ignore-length
          Unfortunately, some HTTP servers (CGI programs, to be more precise)
          send out bogus "Content-Length" headers, which makes Wget go wild,
          as it thinks not all the document was retrieved.  You can spot this
          syndrome if Wget retries getting the same document again and again,
          each time claiming that the (otherwise normal) connection has
          closed on the very same byte.
          With this option, Wget will ignore the "Content-Length" header---as
          if it never existed.
      --header=header-line
          Send header-line along with the rest of the headers in each HTTP
          request.  The supplied header is sent as-is, which means it must
          contain name and value separated by colon, and must not contain
          newlines.
          You may define more than one additional header by specifying
          --header more than once.
                  wget --header='Accept-Charset: iso-8859-2' \
                       --header='Accept-Language: hr'        \
                         http://fly.srk.fer.hr/
          Specification of an empty string as the header value will clear all
          previous user-defined headers.
          As of Wget 1.10, this option can be used to override headers
          otherwise generated automatically.  This example instructs Wget to
          connect to localhost, but to specify foo.bar in the "Host" header:
                  wget --header="Host: foo.bar" http://localhost/
          In versions of Wget prior to 1.10 such use of --header caused
          sending of duplicate headers.
      --max-redirect=number
          Specifies the maximum number of redirections to follow for a
          resource.  The default is 20, which is usually far more than
          necessary. However, on those occasions where you want to allow more
          (or fewer), this is the option to use.
      --proxy-user=user
      --proxy-password=password
          Specify the username user and password password for authentication
          on a proxy server.  Wget will encode them using the "basic"
          authentication scheme.
          Security considerations similar to those with --http-password
          pertain here as well.
      --referer=url
          Include `Referer: url' header in HTTP request.  Useful for
          retrieving documents with server-side processing that assume they
          are always being retrieved by interactive web browsers and only
          come out properly when Referer is set to one of the pages that
          point to them.
      --save-headers
          Save the headers sent by the HTTP server to the file, preceding the
          actual contents, with an empty line as the separator.
      -U agent-string
      --user-agent=agent-string
          Identify as agent-string to the HTTP server.
          The HTTP protocol allows the clients to identify themselves using a
          "User-Agent" header field.  This enables distinguishing the WWW
          software, usually for statistical purposes or for tracing of
          protocol violations.  Wget normally identifies as Wget/version,
          version being the current version number of Wget.
          However, some sites have been known to impose the policy of
          tailoring the output according to the "User-Agent"-supplied
          information.  While this is not such a bad idea in theory, it has
          been abused by servers denying information to clients other than
          (historically) Netscape or, more frequently, Microsoft Internet
          Explorer.  This option allows you to change the "User-Agent" line
          issued by Wget.  Use of this option is discouraged, unless you
          really know what you are doing.
          Specifying empty user agent with --user-agent="" instructs Wget not
          to send the "User-Agent" header in HTTP requests.
      --post-data=string
      --post-file=file
          Use POST as the method for all HTTP requests and send the specified
          data in the request body.  --post-data sends string as data,
          whereas --post-file sends the contents of file.  Other than that,
          they work in exactly the same way. In particular, they both expect
          content of the form "key1=value1&key2=value2", with percent-
          encoding for special characters; the only difference is that one
          expects its content as a command-line parameter and the other
          accepts its content from a file. In particular, --post-file is not
          for transmitting files as form attachments: those must appear as
          "key=value" data (with appropriate percent-coding) just like
          everything else. Wget does not currently support
          "multipart/form-data" for transmitting POST data; only
          "application/x-www-form-urlencoded". Only one of --post-data and
          --post-file should be specified.
          Please be aware that Wget needs to know the size of the POST data
          in advance.  Therefore the argument to "--post-file" must be a
          regular file; specifying a FIFO or something like /dev/stdin won't
          work.  It's not quite clear how to work around this limitation
          inherent in HTTP/1.0.  Although HTTP/1.1 introduces chunked
          transfer that doesn't require knowing the request length in
          advance, a client can't use chunked unless it knows it's talking to
          an HTTP/1.1 server.  And it can't know that until it receives a
          response, which in turn requires the request to have been completed
          -- a chicken-and-egg problem.
          Note: if Wget is redirected after the POST request is completed, it
          will not send the POST data to the redirected URL.  This is because
          URLs that process POST often respond with a redirection to a
          regular page, which does not desire or accept POST.  It is not
          completely clear that this behavior is optimal; if it doesn't work
          out, it might be changed in the future.
          This example shows how to log to a server using POST and then
          proceed to download the desired pages, presumably only accessible
          to authorized users:
                  # Log in to the server.  This can be done only once.
                  wget --save-cookies cookies.txt \
                       --post-data 'user=foo&password=bar' \
                       http://server.com/auth.php
                  # Now grab the page or pages we care about.
                  wget --load-cookies cookies.txt \
                       -p http://server.com/interesting/article.php
          If the server is using session cookies to track user
          authentication, the above will not work because --save-cookies will
          not save them (and neither will browsers) and the cookies.txt file
          will be empty.  In that case use --keep-session-cookies along with
          --save-cookies to force saving of session cookies.
      --content-disposition
          If this is set to on, experimental (not fully-functional) support
          for "Content-Disposition" headers is enabled. This can currently
          result in extra round-trips to the server for a "HEAD" request, and
          is known to suffer from a few bugs, which is why it is not
          currently enabled by default.
          This option is useful for some file-downloading CGI programs that
          use "Content-Disposition" headers to describe what the name of a
          downloaded file should be.
      --trust-server-names
          If this is set to on, on a redirect the last component of the
          redirection URL will be used as the local file name.  By default it
          is used the last component in the original URL.
      --auth-no-challenge
          If this option is given, Wget will send Basic HTTP authentication
          information (plaintext username and password) for all requests,
          just like Wget 1.10.2 and prior did by default.
          Use of this option is not recommended, and is intended only to
          support some few obscure servers, which never send HTTP
          authentication challenges, but accept unsolicited auth info, say,
          in addition to form-based authentication.
  HTTPS (SSL/TLS) Options
      To support encrypted HTTP (HTTPS) downloads, Wget must be compiled with
      an external SSL library, currently OpenSSL.  If Wget is compiled
      without SSL support, none of these options are available.
      --secure-protocol=protocol
          Choose the secure protocol to be used.  Legal values are auto,
          SSLv2, SSLv3, and TLSv1.  If auto is used, the SSL library is given
          the liberty of choosing the appropriate protocol automatically,
          which is achieved by sending an SSLv2 greeting and announcing
          support for SSLv3 and TLSv1.  This is the default.
          Specifying SSLv2, SSLv3, or TLSv1 forces the use of the
          corresponding protocol.  This is useful when talking to old and
          buggy SSL server implementations that make it hard for OpenSSL to
          choose the correct protocol version.  Fortunately, such servers are
          quite rare.
      --no-check-certificate
          Don't check the server certificate against the available
          certificate authorities.  Also don't require the URL host name to
          match the common name presented by the certificate.
          As of Wget 1.10, the default is to verify the server's certificate
          against the recognized certificate authorities, breaking the SSL
          handshake and aborting the download if the verification fails.
          Although this provides more secure downloads, it does break
          interoperability with some sites that worked with previous Wget
          versions, particularly those using self-signed, expired, or
          otherwise invalid certificates.  This option forces an "insecure"
          mode of operation that turns the certificate verification errors
          into warnings and allows you to proceed.
          If you encounter "certificate verification" errors or ones saying
          that "common name doesn't match requested host name", you can use
          this option to bypass the verification and proceed with the
          download.  Only use this option if you are otherwise convinced of
          the site's authenticity, or if you really don't care about the
          validity of its certificate.  It is almost always a bad idea not to
          check the certificates when transmitting confidential or important
          data.
      --certificate=file
          Use the client certificate stored in file.  This is needed for
          servers that are configured to require certificates from the
          clients that connect to them.  Normally a certificate is not
          required and this switch is optional.
      --certificate-type=type
          Specify the type of the client certificate.  Legal values are PEM
          (assumed by default) and DER, also known as ASN1.
      --private-key=file
          Read the private key from file.  This allows you to provide the
          private key in a file separate from the certificate.
      --private-key-type=type
          Specify the type of the private key.  Accepted values are PEM (the
          default) and DER.
      --ca-certificate=file
          Use file as the file with the bundle of certificate authorities
          ("CA") to verify the peers.  The certificates must be in PEM
          format.
          Without this option Wget looks for CA certificates at the system-
          specified locations, chosen at OpenSSL installation time.
      --ca-directory=directory
          Specifies directory containing CA certificates in PEM format.  Each
          file contains one CA certificate, and the file name is based on a
          hash value derived from the certificate.  This is achieved by
          processing a certificate directory with the "c_rehash" utility
          supplied with OpenSSL.  Using --ca-directory is more efficient than
          --ca-certificate when many certificates are installed because it
          allows Wget to fetch certificates on demand.
          Without this option Wget looks for CA certificates at the system-
          specified locations, chosen at OpenSSL installation time.
      --random-file=file
          Use file as the source of random data for seeding the pseudo-random
          number generator on systems without /dev/random.
          On such systems the SSL library needs an external source of
          randomness to initialize.  Randomness may be provided by EGD (see
          --egd-file below) or read from an external source specified by the
          user.  If this option is not specified, Wget looks for random data
          in $RANDFILE or, if that is unset, in $HOME/.rnd.  If none of those
          are available, it is likely that SSL encryption will not be usable.
          If you're getting the "Could not seed OpenSSL PRNG; disabling SSL."
          error, you should provide random data using some of the methods
          described above.
      --egd-file=file
          Use file as the EGD socket.  EGD stands for Entropy Gathering
          Daemon, a user-space program that collects data from various
          unpredictable system sources and makes it available to other
          programs that might need it.  Encryption software, such as the SSL
          library, needs sources of non-repeating randomness to seed the
          random number generator used to produce cryptographically strong
          keys.
          OpenSSL allows the user to specify his own source of entropy using
          the "RAND_FILE" environment variable.  If this variable is unset,
          or if the specified file does not produce enough randomness,
          OpenSSL will read random data from EGD socket specified using this
          option.
          If this option is not specified (and the equivalent startup command
          is not used), EGD is never contacted.  EGD is not needed on modern
          Unix systems that support /dev/random.
  FTP Options
      --ftp-user=user
      --ftp-password=password
          Specify the username user and password password on an FTP server.
          Without this, or the corresponding startup option, the password
          defaults to -wget@, normally used for anonymous FTP.
          Another way to specify username and password is in the URL itself.
          Either method reveals your password to anyone who bothers to run
          "ps".  To prevent the passwords from being seen, store them in
          .wgetrc or .netrc, and make sure to protect those files from other
          users with "chmod".  If the passwords are really important, do not
          leave them lying in those files either---edit the files and delete
          them after Wget has started the download.
      --no-remove-listing
          Don't remove the temporary .listing files generated by FTP
          retrievals.  Normally, these files contain the raw directory
          listings received from FTP servers.  Not removing them can be
          useful for debugging purposes, or when you want to be able to
          easily check on the contents of remote server directories (e.g. to
          verify that a mirror you're running is complete).
          Note that even though Wget writes to a known filename for this
          file, this is not a security hole in the scenario of a user making
          .listing a symbolic link to /etc/passwd or something and asking
          "root" to run Wget in his or her directory.  Depending on the
          options used, either Wget will refuse to write to .listing, making
          the globbing/recursion/time-stamping operation fail, or the
          symbolic link will be deleted and replaced with the actual .listing
          file, or the listing will be written to a .listing.number file.
          Even though this situation isn't a problem, though, "root" should
          never run Wget in a non-trusted user's directory.  A user could do
          something as simple as linking index.html to /etc/passwd and asking
          "root" to run Wget with -N or -r so the file will be overwritten.
      --no-glob
          Turn off FTP globbing.  Globbing refers to the use of shell-like
          special characters (wildcards), like *, ?, [ and ] to retrieve more
          than one file from the same directory at once, like:
                  wget ftp://gnjilux.srk.fer.hr/*.msg
          By default, globbing will be turned on if the URL contains a
          globbing character.  This option may be used to turn globbing on or
          off permanently.
          You may have to quote the URL to protect it from being expanded by
          your shell.  Globbing makes Wget look for a directory listing,
          which is system-specific.  This is why it currently works only with
          Unix FTP servers (and the ones emulating Unix "ls" output).
      --no-passive-ftp
          Disable the use of the passive FTP transfer mode.  Passive FTP
          mandates that the client connect to the server to establish the
          data connection rather than the other way around.
          If the machine is connected to the Internet directly, both passive
          and active FTP should work equally well.  Behind most firewall and
          NAT configurations passive FTP has a better chance of working.
          However, in some rare firewall configurations, active FTP actually
          works when passive FTP doesn't.  If you suspect this to be the
          case, use this option, or set "passive_ftp=off" in your init file.
      --retr-symlinks
          Usually, when retrieving FTP directories recursively and a symbolic
          link is encountered, the linked-to file is not downloaded.
          Instead, a matching symbolic link is created on the local
          filesystem.  The pointed-to file will not be downloaded unless this
          recursive retrieval would have encountered it separately and
          downloaded it anyway.
          When --retr-symlinks is specified, however, symbolic links are
          traversed and the pointed-to files are retrieved.  At this time,
          this option does not cause Wget to traverse symlinks to directories
          and recurse through them, but in the future it should be enhanced
          to do this.
          Note that when retrieving a file (not a directory) because it was
          specified on the command-line, rather than because it was recursed
          to, this option has no effect.  Symbolic links are always traversed
          in this case.
  Recursive Retrieval Options
      -r
      --recursive
          Turn on recursive retrieving.    The default maximum depth is 5.
      -l depth
      --level=depth
          Specify recursion maximum depth level depth.
      --delete-after
          This option tells Wget to delete every single file it downloads,
          after having done so.  It is useful for pre-fetching popular pages
          through a proxy, e.g.:
                  wget -r -nd --delete-after http://whatever.com/~popular/page/
          The -r option is to retrieve recursively, and -nd to not create
          directories.
          Note that --delete-after deletes files on the local machine.  It
          does not issue the DELE command to remote FTP sites, for instance.
          Also note that when --delete-after is specified, --convert-links is
          ignored, so .orig files are simply not created in the first place.
      -k
      --convert-links
          After the download is complete, convert the links in the document
          to make them suitable for local viewing.  This affects not only the
          visible hyperlinks, but any part of the document that links to
          external content, such as embedded images, links to style sheets,
          hyperlinks to non-HTML content, etc.
          Each link will be changed in one of the two ways:
          o   The links to files that have been downloaded by Wget will be
              changed to refer to the file they point to as a relative link.
              Example: if the downloaded file /foo/doc.html links to
              /bar/img.gif, also downloaded, then the link in doc.html will
              be modified to point to ../bar/img.gif.  This kind of
              transformation works reliably for arbitrary combinations of
              directories.
          o   The links to files that have not been downloaded by Wget will
              be changed to include host name and absolute path of the
              location they point to.
              Example: if the downloaded file /foo/doc.html links to
              /bar/img.gif (or to ../bar/img.gif), then the link in doc.html
              will be modified to point to img.gif.
          Because of this, local browsing works reliably: if a linked file
          was downloaded, the link will refer to its local name; if it was
          not downloaded, the link will refer to its full Internet address
          rather than presenting a broken link.  The fact that the former
          links are converted to relative links ensures that you can move the
          downloaded hierarchy to another directory.
          Note that only at the end of the download can Wget know which links
          have been downloaded.  Because of that, the work done by -k will be
          performed at the end of all the downloads.
      -K
      --backup-converted
          When converting a file, back up the original version with a .orig
          suffix.  Affects the behavior of -N.
      -m
      --mirror
          Turn on options suitable for mirroring.  This option turns on
          recursion and time-stamping, sets infinite recursion depth and
          keeps FTP directory listings.  It is currently equivalent to -r -N
          -l inf --no-remove-listing.
      -p
      --page-requisites
          This option causes Wget to download all the files that are
          necessary to properly display a given HTML page.  This includes
          such things as inlined images, sounds, and referenced stylesheets.
          Ordinarily, when downloading a single HTML page, any requisite
          documents that may be needed to display it properly are not
          downloaded.  Using -r together with -l can help, but since Wget
          does not ordinarily distinguish between external and inlined
          documents, one is generally left with "leaf documents" that are
          missing their requisites.
          For instance, say document 1.html contains an "<IMG>" tag
          referencing 1.gif and an "<A>" tag pointing to external document
          2.html.  Say that 2.html is similar but that its image is 2.gif and
          it links to 3.html.  Say this continues up to some arbitrarily high
          number.
          If one executes the command:
                  wget -r -l 2 http://<site>/1.html
          then 1.html, 1.gif, 2.html, 2.gif, and 3.html will be downloaded.
          As you can see, 3.html is without its requisite 3.gif because Wget
          is simply counting the number of hops (up to 2) away from 1.html in
          order to determine where to stop the recursion.  However, with this
          command:
                  wget -r -l 2 -p http://<site>/1.html
          all the above files and 3.html's requisite 3.gif will be
          downloaded.  Similarly,
                  wget -r -l 1 -p http://<site>/1.html
          will cause 1.html, 1.gif, 2.html, and 2.gif to be downloaded.  One
          might think that:
                  wget -r -l 0 -p http://<site>/1.html
          would download just 1.html and 1.gif, but unfortunately this is not
          the case, because -l 0 is equivalent to -l inf---that is, infinite
          recursion.  To download a single HTML page (or a handful of them,
          all specified on the command-line or in a -i URL input file) and
          its (or their) requisites, simply leave off -r and -l:
                  wget -p http://<site>/1.html
          Note that Wget will behave as if -r had been specified, but only
          that single page and its requisites will be downloaded.  Links from
          that page to external documents will not be followed.  Actually, to
          download a single page and all its requisites (even if they exist
          on separate websites), and make sure the lot displays properly
          locally, this author likes to use a few options in addition to -p:
                  wget -E -H -k -K -p http://<site>/<document>
          To finish off this topic, it's worth knowing that Wget's idea of an
          external document link is any URL specified in an "<A>" tag, an
          "<AREA>" tag, or a "<LINK>" tag other than "<LINK
          REL="stylesheet">".
      --strict-comments
          Turn on strict parsing of HTML comments.  The default is to
          terminate comments at the first occurrence of -->.
          According to specifications, HTML comments are expressed as SGML
          declarations.  Declaration is special markup that begins with <!
          and ends with >, such as <!DOCTYPE ...>, that may contain comments
          between a pair of -- delimiters.  HTML comments are "empty
          declarations", SGML declarations without any non-comment text.
          Therefore,  is a valid comment, and so is , but  is not.
          On the other hand, most HTML writers don't perceive comments as
          anything other than text delimited with , which is not
          quite the same.  For example, something like  works
          as a valid comment as long as the number of dashes is a multiple of
          four (!).  If not, the comment technically lasts until the next --,
          which may be at the other end of the document.  Because of this,
          many popular browsers completely ignore the specification and
          implement what users have come to expect: comments delimited with
          .
          Until version 1.9, Wget interpreted comments strictly, which
          resulted in missing links in many web pages that displayed fine in
          browsers, but had the misfortune of containing non-compliant
          comments.  Beginning with version 1.9, Wget has joined the ranks of
          clients that implements "naive" comments, terminating each comment
          at the first occurrence of -->.
          If, for whatever reason, you want strict comment parsing, use this
          option to turn it on.
  Recursive Accept/Reject Options
      -A acclist --accept acclist
      -R rejlist --reject rejlist
          Specify comma-separated lists of file name suffixes or patterns to
          accept or reject. Note that if any of the wildcard characters, *,
          ?, [ or ], appear in an element of acclist or rejlist, it will be
          treated as a pattern, rather than a suffix.
      -D domain-list
      --domains=domain-list
          Set domains to be followed.  domain-list is a comma-separated list
          of domains.  Note that it does not turn on -H.
      --exclude-domains domain-list
          Specify the domains that are not to be followed.
      --follow-ftp
          Follow FTP links from HTML documents.  Without this option, Wget
          will ignore all the FTP links.
      --follow-tags=list
          Wget has an internal table of HTML tag / attribute pairs that it
          considers when looking for linked documents during a recursive
          retrieval.  If a user wants only a subset of those tags to be
          considered, however, he or she should be specify such tags in a
          comma-separated list with this option.
      --ignore-tags=list
          This is the opposite of the --follow-tags option.  To skip certain
          HTML tags when recursively looking for documents to download,
          specify them in a comma-separated list.
          In the past, this option was the best bet for downloading a single
          page and its requisites, using a command-line like:
                  wget --ignore-tags=a,area -H -k -K -r http://<site>/<document>
          However, the author of this option came across a page with tags
          like "<LINK REL="home" HREF="/">" and came to the realization that
          specifying tags to ignore was not enough.  One can't just tell Wget
          to ignore "<LINK>", because then stylesheets will not be
          downloaded.  Now the best bet for downloading a single page and its
          requisites is the dedicated --page-requisites option.
      --ignore-case
          Ignore case when matching files and directories.  This influences
          the behavior of -R, -A, -I, and -X options, as well as globbing
          implemented when downloading from FTP sites.  For example, with
          this option, -A *.txt will match file1.txt, but also file2.TXT,
          file3.TxT, and so on.
      -H
      --span-hosts
          Enable spanning across hosts when doing recursive retrieving.
      -L
      --relative
          Follow relative links only.  Useful for retrieving a specific home
          page without any distractions, not even those from the same hosts.
      -I list
      --include-directories=list
          Specify a comma-separated list of directories you wish to follow
          when downloading.  Elements of list may contain wildcards.
      -X list
      --exclude-directories=list
          Specify a comma-separated list of directories you wish to exclude
          from download.  Elements of list may contain wildcards.
      -np
      --no-parent
          Do not ever ascend to the parent directory when retrieving
          recursively.  This is a useful option, since it guarantees that
          only the files below a certain hierarchy will be downloaded.

[править] FILES

      /usr/local/etc/wgetrc
          Default location of the global startup file.
      .wgetrc
          User startup file.

[править] BUGS

      You are welcome to submit bug reports via the GNU Wget bug tracker (see
      <http://wget.addictivecode.org/BugTracker>).
      Before actually submitting a bug report, please try to follow a few
      simple guidelines.
      1.  Please try to ascertain that the behavior you see really is a bug.
          If Wget crashes, it's a bug.  If Wget does not behave as
          documented, it's a bug.  If things work strange, but you are not
          sure about the way they are supposed to work, it might well be a
          bug, but you might want to double-check the documentation and the
          mailing lists.
      2.  Try to repeat the bug in as simple circumstances as possible.  E.g.
          if Wget crashes while downloading wget -rl0 -kKE -t5 --no-proxy
          http://yoyodyne.com -o /tmp/log, you should try to see if the crash
          is repeatable, and if will occur with a simpler set of options.
          You might even try to start the download at the page where the
          crash occurred to see if that page somehow triggered the crash.
          Also, while I will probably be interested to know the contents of
          your .wgetrc file, just dumping it into the debug message is
          probably a bad idea.  Instead, you should first try to see if the
          bug repeats with .wgetrc moved out of the way.  Only if it turns
          out that .wgetrc settings affect the bug, mail me the relevant
          parts of the file.
      3.  Please start Wget with -d option and send us the resulting output
          (or relevant parts thereof).  If Wget was compiled without debug
          support, recompile it---it is much easier to trace bugs with debug
          support on.
          Note: please make sure to remove any potentially sensitive
          information from the debug log before sending it to the bug
          address.  The "-d" won't go out of its way to collect sensitive
          information, but the log will contain a fairly complete transcript
          of Wget's communication with the server, which may include
          passwords and pieces of downloaded data.  Since the bug address is
          publically archived, you may assume that all bug reports are
          visible to the public.
      4.  If Wget has crashed, try to run it in a debugger, e.g. "gdb `which
          wget` core" and type "where" to get the backtrace.  This may not
          work if the system administrator has disabled core files, but it is
          safe to try.

[править] SEE ALSO

      This is not the complete manual for GNU Wget.  For more complete
      information, including more detailed explanations of some of the
      options, and a number of commands available for use with .wgetrc files
      and the -e option, see the GNU Info entry for wget.

[править] AUTHOR

      Originally written by Hrvoje Niksic <hniksic@xemacs.org>.

[править] COPYRIGHT

      Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
      2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
      Permission is granted to copy, distribute and/or modify this document
      under the terms of the GNU Free Documentation License, Version 1.2 or
      any later version published by the Free Software Foundation; with no
      Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.  A
      copy of the license is included in the section entitled "GNU Free
      Documentation License".


GNU Wget 1.13.4 2011-09-24 WGET(1)

Источник — «http://xgu.ru/wiki/man/orig/wget»