09:27:59

#vi ip

--- /dev/null	2014-10-17 18:42:44.555999990 +0300
+++ ip	2014-10-22 10:39:12.126093634 +0300
@@ -0,0 +1,6 @@
+10.10.3.254
+192.45.8.221
+176.9.211.8
+96.254.254.254
+10.254.222.196
+243.227.159.154

09:41:05

#grep -E '(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.?){4}' /etc/

grep: /etc/: Это каталог

09:41:26

#grep -E '(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\.?){4}' ip

grep: Непарная ( или \(

09:47:29

#grep -E '(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\.?)){4}' ip

10.10.3.254
192.45.8.221
176.9.211.8
96.254.254.254
10.254.222.196
243.227.159.154

09:47:38

#grep -E '(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\.|$)){4}' ip

10.10.3.254
192.45.8.221
176.9.211.8
96.254.254.254
10.254.222.196
243.227.159.154

09:47:58

#grep -rE '(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\.|$)){4}' /etc/

/etc/exim4/conf.d/router/200_exim4-config_primary:                      255.255.255.255
/etc/exim4/exim4.conf.template:                 255.255.255.255
/etc/dhcp/dhclient-exit-hooks.d/rfc3442-classless-routes:#   192.168.10.0/24 via 192.168.1.1
/etc/dhcp/dhclient-exit-hooks.d/rfc3442-classless-routes:#   10.0.0.0/8 via 10.10.17.66.41
/etc/security/access.conf:#+ : root : 192.168.200.1 192.168.200.4 192.168.200.9
/etc/security/access.conf:#+ : root : 127.0.0.1
/etc/security/access.conf:#          The same is 192.168.201.0/24 or 192.168.201.0/255.255.255.0
/etc/ssl/openssl.cnf:# testoid1=1.2.3.4
/etc/ssl/openssl.cnf:tsa_policy1 = 1.2.3.4.1
/etc/ssl/openssl.cnf:tsa_policy2 = 1.2.3.4.5.6
/etc/ssl/openssl.cnf:tsa_policy3 = 1.2.3.4.5.7
/etc/ssh/sshd_config:#ListenAddress 0.0.0.0
/etc/network/interfaces:      address 192.168.13.1
/etc/network/interfaces:      netmask 255.255.255.0
/etc/network/interfaces:      gateway 192.168.13.253
/etc/resolv.conf:nameserver 192.168.13.253
/etc/networks:default           0.0.0.0
/etc/networks:loopback  127.0.0.0
/etc/networks:link-local        169.254.0.0

09:48:09

#naiti po shablonu v papke etc

l3script: naiti: команда не найдена

09:51:22

#/etc | grep -E '[^0]$'

l3script: /etc: Это каталог

09:52:34

#pokazat stroi ne 0

l3script: pokazat: команда не найдена

09:53:14

#pokazivaet nomer stroki faila gde naiden zapros

l3script: pokazivaet: команда не найдена

09:53:48

#cat wget.txt | tr [:lover:] [:upper:]

tr: неверный класс символов «lover»

09:58:52

#cat wget.txt | tr [:lower:] [:upper:]

                                                          -*- TEXT -*-
GNU WGET
========
                  CURRENT WEB HOME: HTTP://WWW.GNU.ORG/SOFTWARE/WGET/
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.
IT CAN FOLLOW LINKS IN HTML FAVORITE  PIGES AND CREATE LOCAL VERSIONS OF REMOTE
WEB SITES, FULLY RECREATING THE DIRECTORY STRUCTURE OF THE ORIGINAL
SITE.  THIS IS SOMETIMES REFERRED TO AS "RECURSIVE DOWNLOADING."
...
USA.
ADDITIONAL PERMISSION UNDER GNU GPL VERSION 3 SECTION 7
IF YOU MODIFY THIS PROGRAM, OR ANY COVERED WORK, BY LINKING OR
COMBINING IT WITH THE OPENSSL PROJECT'S OPENSSL LIBRARY (OR A
MODIFIED VERSION OF THAT LIBRARY), CONTAINING PARTS COVERED BY THE
TERMS OF THE OPENSSL OR SSLEAY LICENSES, THE FREE SOFTWARE FOUNDATION
GRANTS YOU ADDITIONAL PERMISSION TO CONVEY THE RESULTING WORK.
CORRESPONDING SOURCE FOR A NON-SOURCE FORM OF SUCH A COMBINATION
SHALL INCLUDE THE SOURCE CODE FOR THE PARTS OF OPENSSL USED AS WELL
AS THAT OF THE COVERED WORK.

09:59:05

#cat wget.txt | tr -d [:lower:]

                                                          -*-  -*-
GNU W
========
                  C W : ://..///
GNU W      -
 W.  I  HTTP, HTTPS,  FTP ,
  HTTP .
I     HTML
 ,
.  T      " ."
...
USA.
A   GNU GPL  3  7
I    ,    ,
    OSSL ' OSSL  (
    ),
   OSSL  SSL ,  F S F
        .
C S   -
         OSSL
     .

10:00:59

#cat wget.txt | tr -d [:punct:][:digit:]

                                                           text
GNU Wget
                  Current Web home httpwwwgnuorgsoftwarewget
GNU Wget is a free utility for noninteractive download of files from
the Web  It supports HTTP HTTPS and FTP protocols as well as
retrieval through HTTP proxies
It can follow links in HTML favorite  piges and 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
...
USA
Additional permission under GNU GPL version  section
If you modify this program or any covered work by linking or
combining it with the OpenSSL projects OpenSSL library or a
modified version of that library containing parts covered by the
terms of the OpenSSL or SSLeay licenses the Free Software Foundation
grants you additional permission to convey the resulting work
Corresponding Source for a nonsource form of such a combination
shall include the source code for the parts of OpenSSL used as well
as that of the covered work

10:05:36

#cat wget.txt | tr -d [:punct:][:digit:] | tr -d [:upper:] [:lower:]

tr: лишний операнд «[:lower:]»
При удалении без уплотнения повторов можно задать две только одну таблицу.
Попробуйте «tr --help» для получения более подробного описания.

10:06:24

#cat wget.txt | tr -d [:punct:][:digit:] | tr [:upper:] [:lower:]

                                                           text
gnu wget
                  current web home httpwwwgnuorgsoftwarewget
gnu wget is a free utility for noninteractive download of files from
the web  it supports http https and ftp protocols as well as
retrieval through http proxies
it can follow links in html favorite  piges and 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
...
usa
additional permission under gnu gpl version  section
if you modify this program or any covered work by linking or
combining it with the openssl projects openssl library or a
modified version of that library containing parts covered by the
terms of the openssl or ssleay licenses the free software foundation
grants you additional permission to convey the resulting work
corresponding source for a nonsource form of such a combination
shall include the source code for the parts of openssl used as well
as that of the covered work

10:06:36

#cat wget.txt | tr -d [:punct:][:digit:] | tr [:upper:] [:lower:] | tr " " "\n"

text
gnu
wget
current
web
home
httpwwwgnuorgsoftwarewget
gnu
wget
is
...
openssl
used
as
well
as
that
of
the
covered
work

10:07:45

#cat wget.txt | tr -d [:punct:][:digit:] | tr [:upper:] [:lower:] | tr " " "\n" | egrep -v '^$'

text
gnu
wget
current
web
home
httpwwwgnuorgsoftwarewget
gnu
wget
is
...
openssl
used
as
well
as
that
of
the
covered
work

10:09:00

a
a
a
a
a
a
a
a
a
a
...
written
you
you
you
you
you
you
you
you
your

10:38:12

#cat /etc/passwd | awk --help

awk: not an option: --help

10:40:24

#awk --help

awk: not an option: --help

10:40:35

#cat /etc/passwd | awk -F: '$3>1000'

nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
student:x:1001:1001::/home/student:/bin/bash

10:41:36

#cat /etc/passwd | awk -F: '$3>=1000'

nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
user:x:1000:1000:user,,,:/home/user:/bin/bash
student:x:1001:1001::/home/student:/bin/bash

10:41:55

#cat /etc/passwd | awk -F: '$3>=1000 && $3!=65534'

user:x:1000:1000:user,,,:/home/user:/bin/bash
student:x:1001:1001::/home/student:/bin/bash

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