Журнал лабораторных работ

Содержание

Журнал

Вторник (05/18/10)

/dev/ttyp1
10:47:55
$touch "`date`"

10:48:12
$ls -l
total 0
-rw-r--r--  1 user  wheel  0 May 18 11:47 11:47:51
-rw-r--r--  1 user  wheel  0 May 18 11:47 18
-rw-r--r--  1 user  wheel  0 May 18 11:47 2010
-rw-r--r--  1 user  wheel  0 May 18 11:47 EEST
-rw-r--r--  1 user  wheel  0 May 18 11:47 May
-rw-r--r--  1 user  wheel  0 May 18 11:47 Tue
-rw-r--r--  1 user  wheel  0 May 18 11:48 Tue May 18 11:48:12 EEST 2010
10:48:13
$sort
^C
10:51:56
$vim names
--- /dev/null	2010-05-18 11:52:12.000000000 +0300
+++ names	2010-05-18 11:52:14.000000000 +0300
@@ -0,0 +1,3 @@
+Vitaliy
+Sergey
+Andrey
10:52:14
$names < sort > sorted_names
bash: sort: No such file or directory
10:52:37
$sort < names > sorted_names

10:52:53
$cat sorted_names
Andrey
Sergey
Vitaliy
10:52:56
$man sort
10:54:54
$find ~ /root -name a*
/home/user/.gconf/desktop/gnome/accessibility
/home/user/.gconf/apps
/home/user/.gconf/apps/panel/applets
/home/user/.gnome2/accels
/home/user/.fontconfig/a046218b5fb18228765bf87355e87ca4-x86.cache-2
/home/user/.thumbnails/normal/a6a745c58219b5e34223a81b63254490.png
/home/user/.thumbnails/normal/a4e6d0d296b00fb9741d155a6c17cb88.png
/home/user/.thumbnails/normal/afb4bf3db3cb1f1004599f801ee4af7b.png
/home/user/.config/xfce4/panel/actions-12.rc
/home/user/.config/Thunar/accels.scm
/home/user/.config/autostart
find: /root/.ssh: Permission denied
find: /root/.gconf: Permission denied
find: /root/.gconfd: Permission denied
find: /root/.gnome2: Permission denied
find: /root/.gnome2_private: Permission denied
find: /root/.nautilus/metafiles: Permission denied
find: /root/.metacity: Permission denied
find: /root/.config: Permission denied
find: /root/.Trash: Permission denied
find: /root/.thumbnails: Permission denied
10:55:01
$find ~ /root -name a* 2>/tmp/errors
/home/user/.gconf/desktop/gnome/accessibility
/home/user/.gconf/apps
/home/user/.gconf/apps/panel/applets
/home/user/.gnome2/accels
/home/user/.fontconfig/a046218b5fb18228765bf87355e87ca4-x86.cache-2
/home/user/.thumbnails/normal/a6a745c58219b5e34223a81b63254490.png
/home/user/.thumbnails/normal/a4e6d0d296b00fb9741d155a6c17cb88.png
/home/user/.thumbnails/normal/afb4bf3db3cb1f1004599f801ee4af7b.png
/home/user/.config/xfce4/panel/actions-12.rc
/home/user/.config/Thunar/accels.scm
/home/user/.config/autostart
10:55:19
$cat /tmp/errors
find: /root/.ssh: Permission denied
find: /root/.gconf: Permission denied
find: /root/.gconfd: Permission denied
find: /root/.gnome2: Permission denied
find: /root/.gnome2_private: Permission denied
find: /root/.nautilus/metafiles: Permission denied
find: /root/.metacity: Permission denied
find: /root/.config: Permission denied
find: /root/.Trash: Permission denied
find: /root/.thumbnails: Permission denied
10:55:24
$find ~ /root -name a* 2>/tmp/errors 1>/tmp/results

10:55:36
$cat /tmp/errors
find: /root/.ssh: Permission denied
find: /root/.gconf: Permission denied
find: /root/.gconfd: Permission denied
find: /root/.gnome2: Permission denied
find: /root/.gnome2_private: Permission denied
find: /root/.nautilus/metafiles: Permission denied
find: /root/.metacity: Permission denied
find: /root/.config: Permission denied
find: /root/.Trash: Permission denied
find: /root/.thumbnails: Permission denied
10:55:38
$cat /tmp/res
resolv.conf       resolv.conf.save  results
10:55:38
$cat /tmp/res
resolv.conf       resolv.conf.save  results
10:55:38
$cat /tmp/results
/home/user/.gconf/desktop/gnome/accessibility
/home/user/.gconf/apps
/home/user/.gconf/apps/panel/applets
/home/user/.gnome2/accels
/home/user/.fontconfig/a046218b5fb18228765bf87355e87ca4-x86.cache-2
/home/user/.thumbnails/normal/a6a745c58219b5e34223a81b63254490.png
/home/user/.thumbnails/normal/a4e6d0d296b00fb9741d155a6c17cb88.png
/home/user/.thumbnails/normal/afb4bf3db3cb1f1004599f801ee4af7b.png
/home/user/.config/xfce4/panel/actions-12.rc
/home/user/.config/Thunar/accels.scm
/home/user/.config/autostart
10:55:45
$find ~ /root -name a* 2>/tmp/errors 1>/tmp/results

10:56:43
$#sort < names > names

10:56:59
$cat names
Vitaliy
Sergey
Andrey
10:57:01
$sort < names > names

10:57:07
$cat names

10:57:10
$sort < names >> names

10:57:18
$cat names

10:57:19
$cat
a
a
^C
10:57:37
$cat | grep b
a
ab
ab
^C
10:57:56
$cat /etc/passwd
# $FreeBSD: src/etc/master.passwd,v 1.40 2005/06/06 20:19:56 brooks Exp $
#
root:*:0:0:Charlie &:/root:/usr/local/bin/bash
toor:*:0:0:Bourne-again Superuser:/root:
daemon:*:1:1:Owner of many system processes:/root:/usr/sbin/nologin
operator:*:2:5:System &:/:/usr/sbin/nologin
bin:*:3:7:Binaries Commands and Source:/:/usr/sbin/nologin
tty:*:4:65533:Tty Sandbox:/:/usr/sbin/nologin
kmem:*:5:65533:KMem Sandbox:/:/usr/sbin/nologin
games:*:7:13:Games pseudo-user:/usr/games:/usr/sbin/nologin
...
_dhcp:*:65:65:dhcp programs:/var/empty:/usr/sbin/nologin
uucp:*:66:66:UUCP pseudo-user:/var/spool/uucppublic:/usr/local/libexec/uucp/uucico
pop:*:68:6:Post Office Owner:/nonexistent:/usr/sbin/nologin
www:*:80:80:World Wide Web Owner:/nonexistent:/usr/sbin/nologin
nobody:*:65534:65534:Unprivileged user:/nonexistent:/usr/sbin/nologin
messagebus:*:556:556:D-BUS Daemon User:/nonexistent:/sbin/nologin
polkit:*:562:562:PolicyKit Daemon User:/nonexistent:/sbin/nologin
avahi:*:558:558:Avahi Daemon User:/nonexistent:/sbin/nologin
gdm:*:92:92:GNOME Display Manager:/nonexistent:/sbin/nologin
user:*:1001:0:User &:/home/user:/usr/local/bin/bash
10:59:29
$cat /etc/passwd
# $FreeBSD: src/etc/master.passwd,v 1.40 2005/06/06 20:19:56 brooks Exp $
#
root:*:0:0:Charlie &:/root:/usr/local/bin/bash
toor:*:0:0:Bourne-again Superuser:/root:
daemon:*:1:1:Owner of many system processes:/root:/usr/sbin/nologin
operator:*:2:5:System &:/:/usr/sbin/nologin
bin:*:3:7:Binaries Commands and Source:/:/usr/sbin/nologin
tty:*:4:65533:Tty Sandbox:/:/usr/sbin/nologin
kmem:*:5:65533:KMem Sandbox:/:/usr/sbin/nologin
games:*:7:13:Games pseudo-user:/usr/games:/usr/sbin/nologin
...
_dhcp:*:65:65:dhcp programs:/var/empty:/usr/sbin/nologin
uucp:*:66:66:UUCP pseudo-user:/var/spool/uucppublic:/usr/local/libexec/uucp/uucico
pop:*:68:6:Post Office Owner:/nonexistent:/usr/sbin/nologin
www:*:80:80:World Wide Web Owner:/nonexistent:/usr/sbin/nologin
nobody:*:65534:65534:Unprivileged user:/nonexistent:/usr/sbin/nologin
messagebus:*:556:556:D-BUS Daemon User:/nonexistent:/sbin/nologin
polkit:*:562:562:PolicyKit Daemon User:/nonexistent:/sbin/nologin
avahi:*:558:558:Avahi Daemon User:/nonexistent:/sbin/nologin
gdm:*:92:92:GNOME Display Manager:/nonexistent:/sbin/nologin
user:*:1001:0:User &:/home/user:/usr/local/bin/bash
11:03:14
$cat /etc/passwd | cud -d : -f 1
bash: cud: command not found
11:03:42
$cat /etc/passwd | cut -d : -f 1
# $FreeBSD
#
root
toor
daemon
operator
bin
tty
kmem
games
...
_dhcp
uucp
pop
www
nobody
messagebus
polkit
avahi
gdm
user
11:03:46
$cat /etc/passwd
# $FreeBSD: src/etc/master.passwd,v 1.40 2005/06/06 20:19:56 brooks Exp $
#
root:*:0:0:Charlie &:/root:/usr/local/bin/bash
toor:*:0:0:Bourne-again Superuser:/root:
daemon:*:1:1:Owner of many system processes:/root:/usr/sbin/nologin
operator:*:2:5:System &:/:/usr/sbin/nologin
bin:*:3:7:Binaries Commands and Source:/:/usr/sbin/nologin
tty:*:4:65533:Tty Sandbox:/:/usr/sbin/nologin
kmem:*:5:65533:KMem Sandbox:/:/usr/sbin/nologin
games:*:7:13:Games pseudo-user:/usr/games:/usr/sbin/nologin
...
_dhcp:*:65:65:dhcp programs:/var/empty:/usr/sbin/nologin
uucp:*:66:66:UUCP pseudo-user:/var/spool/uucppublic:/usr/local/libexec/uucp/uucico
pop:*:68:6:Post Office Owner:/nonexistent:/usr/sbin/nologin
www:*:80:80:World Wide Web Owner:/nonexistent:/usr/sbin/nologin
nobody:*:65534:65534:Unprivileged user:/nonexistent:/usr/sbin/nologin
messagebus:*:556:556:D-BUS Daemon User:/nonexistent:/sbin/nologin
polkit:*:562:562:PolicyKit Daemon User:/nonexistent:/sbin/nologin
avahi:*:558:558:Avahi Daemon User:/nonexistent:/sbin/nologin
gdm:*:92:92:GNOME Display Manager:/nonexistent:/sbin/nologin
user:*:1001:0:User &:/home/user:/usr/local/bin/bash
11:03:53
$cat /etc/passwd | cut -d : -f 1
# $FreeBSD
#
root
toor
daemon
operator
bin
tty
kmem
games
...
_dhcp
uucp
pop
www
nobody
messagebus
polkit
avahi
gdm
user
11:04:09
$cat /etc/passwd | awk '{print$1}'
#
#
root:*:0:0:Charlie
toor:*:0:0:Bourne-again
daemon:*:1:1:Owner
operator:*:2:5:System
bin:*:3:7:Binaries
tty:*:4:65533:Tty
kmem:*:5:65533:KMem
games:*:7:13:Games
...
_dhcp:*:65:65:dhcp
uucp:*:66:66:UUCP
pop:*:68:6:Post
www:*:80:80:World
nobody:*:65534:65534:Unprivileged
messagebus:*:556:556:D-BUS
polkit:*:562:562:PolicyKit
avahi:*:558:558:Avahi
gdm:*:92:92:GNOME
user:*:1001:0:User
11:04:29
$cat /etc/passwd | awk -F : '{print$1}'
# $FreeBSD
#
root
toor
daemon
operator
bin
tty
kmem
games
...
_dhcp
uucp
pop
www
nobody
messagebus
polkit
avahi
gdm
user
11:04:38
$cat /etc/passwd | awk -F : '{print$1" Has home directory: "$5}'
# $FreeBSD Has home directory:
# Has home directory:
root Has home directory: Charlie &
toor Has home directory: Bourne-again Superuser
daemon Has home directory: Owner of many system processes
operator Has home directory: System &
bin Has home directory: Binaries Commands and Source
tty Has home directory: Tty Sandbox
kmem Has home directory: KMem Sandbox
games Has home directory: Games pseudo-user
...
_dhcp Has home directory: dhcp programs
uucp Has home directory: UUCP pseudo-user
pop Has home directory: Post Office Owner
www Has home directory: World Wide Web Owner
nobody Has home directory: Unprivileged user
messagebus Has home directory: D-BUS Daemon User
polkit Has home directory: PolicyKit Daemon User
avahi Has home directory: Avahi Daemon User
gdm Has home directory: GNOME Display Manager
user Has home directory: User &
11:05:00
$cat /etc/passwd | awk -F : '{print$1" Has home directory: "$6}'
# $FreeBSD Has home directory:
# Has home directory:
root Has home directory: /root
toor Has home directory: /root
daemon Has home directory: /root
operator Has home directory: /
bin Has home directory: /
tty Has home directory: /
kmem Has home directory: /
games Has home directory: /usr/games
...
_dhcp Has home directory: /var/empty
uucp Has home directory: /var/spool/uucppublic
pop Has home directory: /nonexistent
www Has home directory: /nonexistent
nobody Has home directory: /nonexistent
messagebus Has home directory: /nonexistent
polkit Has home directory: /nonexistent
avahi Has home directory: /nonexistent
gdm Has home directory: /nonexistent
user Has home directory: /home/user
11:05:02
$cat /etc/passwd | awk -F : '{print$1" Has home directory: "$6}'

11:05:52
$cat /etc/passwd | head
# $FreeBSD: src/etc/master.passwd,v 1.40 2005/06/06 20:19:56 brooks Exp $
#
root:*:0:0:Charlie &:/root:/usr/local/bin/bash
toor:*:0:0:Bourne-again Superuser:/root:
daemon:*:1:1:Owner of many system processes:/root:/usr/sbin/nologin
operator:*:2:5:System &:/:/usr/sbin/nologin
bin:*:3:7:Binaries Commands and Source:/:/usr/sbin/nologin
tty:*:4:65533:Tty Sandbox:/:/usr/sbin/nologin
kmem:*:5:65533:KMem Sandbox:/:/usr/sbin/nologin
games:*:7:13:Games pseudo-user:/usr/games:/usr/sbin/nologin
11:05:58
$cat /etc/passwd | head | cat -n
     1  # $FreeBSD: src/etc/master.passwd,v 1.40 2005/06/06 20:19:56 brooks Exp $
     2  #
     3  root:*:0:0:Charlie &:/root:/usr/local/bin/bash
     4  toor:*:0:0:Bourne-again Superuser:/root:
     5  daemon:*:1:1:Owner of many system processes:/root:/usr/sbin/nologin
     6  operator:*:2:5:System &:/:/usr/sbin/nologin
     7  bin:*:3:7:Binaries Commands and Source:/:/usr/sbin/nologin
     8  tty:*:4:65533:Tty Sandbox:/:/usr/sbin/nologin
     9  kmem:*:5:65533:KMem Sandbox:/:/usr/sbin/nologin
    10  games:*:7:13:Games pseudo-user:/usr/games:/usr/sbin/nologin
11:06:02
$cat /etc/passwd | head -20 | cat -n
     1  # $FreeBSD: src/etc/master.passwd,v 1.40 2005/06/06 20:19:56 brooks Exp $
     2  #
     3  root:*:0:0:Charlie &:/root:/usr/local/bin/bash
     4  toor:*:0:0:Bourne-again Superuser:/root:
     5  daemon:*:1:1:Owner of many system processes:/root:/usr/sbin/nologin
     6  operator:*:2:5:System &:/:/usr/sbin/nologin
     7  bin:*:3:7:Binaries Commands and Source:/:/usr/sbin/nologin
     8  tty:*:4:65533:Tty Sandbox:/:/usr/sbin/nologin
     9  kmem:*:5:65533:KMem Sandbox:/:/usr/sbin/nologin
    10  games:*:7:13:Games pseudo-user:/usr/games:/usr/sbin/nologin
    11  news:*:8:8:News Subsystem:/:/usr/sbin/nologin
    12  man:*:9:9:Mister Man Pages:/usr/share/man:/usr/sbin/nologin
    13  sshd:*:22:22:Secure Shell Daemon:/var/empty:/usr/sbin/nologin
    14  smmsp:*:25:25:Sendmail Submission User:/var/spool/clientmqueue:/usr/sbin/nologin
    15  mailnull:*:26:26:Sendmail Default User:/var/spool/mqueue:/usr/sbin/nologin
    16  bind:*:53:53:Bind Sandbox:/:/usr/sbin/nologin
    17  proxy:*:62:62:Packet Filter pseudo-user:/nonexistent:/usr/sbin/nologin
    18  _pflogd:*:64:64:pflogd privsep user:/var/empty:/usr/sbin/nologin
    19  _dhcp:*:65:65:dhcp programs:/var/empty:/usr/sbin/nologin
    20  uucp:*:66:66:UUCP pseudo-user:/var/spool/uucppublic:/usr/local/libexec/uucp/uucico
11:06:07
$cat /etc/passwd | tail | cat -n
     1  _dhcp:*:65:65:dhcp programs:/var/empty:/usr/sbin/nologin
     2  uucp:*:66:66:UUCP pseudo-user:/var/spool/uucppublic:/usr/local/libexec/uucp/uucico
     3  pop:*:68:6:Post Office Owner:/nonexistent:/usr/sbin/nologin
     4  www:*:80:80:World Wide Web Owner:/nonexistent:/usr/sbin/nologin
     5  nobody:*:65534:65534:Unprivileged user:/nonexistent:/usr/sbin/nologin
     6  messagebus:*:556:556:D-BUS Daemon User:/nonexistent:/sbin/nologin
     7  polkit:*:562:562:PolicyKit Daemon User:/nonexistent:/sbin/nologin
     8  avahi:*:558:558:Avahi Daemon User:/nonexistent:/sbin/nologin
     9  gdm:*:92:92:GNOME Display Manager:/nonexistent:/sbin/nologin
    10  user:*:1001:0:User &:/home/user:/usr/local/bin/bash
11:06:15
$cat /etc/passwd | tail -40 | cat -n
     1  # $FreeBSD: src/etc/master.passwd,v 1.40 2005/06/06 20:19:56 brooks Exp $
     2  #
     3  root:*:0:0:Charlie &:/root:/usr/local/bin/bash
     4  toor:*:0:0:Bourne-again Superuser:/root:
     5  daemon:*:1:1:Owner of many system processes:/root:/usr/sbin/nologin
     6  operator:*:2:5:System &:/:/usr/sbin/nologin
     7  bin:*:3:7:Binaries Commands and Source:/:/usr/sbin/nologin
     8  tty:*:4:65533:Tty Sandbox:/:/usr/sbin/nologin
     9  kmem:*:5:65533:KMem Sandbox:/:/usr/sbin/nologin
    10  games:*:7:13:Games pseudo-user:/usr/games:/usr/sbin/nologin
...
    19  _dhcp:*:65:65:dhcp programs:/var/empty:/usr/sbin/nologin
    20  uucp:*:66:66:UUCP pseudo-user:/var/spool/uucppublic:/usr/local/libexec/uucp/uucico
    21  pop:*:68:6:Post Office Owner:/nonexistent:/usr/sbin/nologin
    22  www:*:80:80:World Wide Web Owner:/nonexistent:/usr/sbin/nologin
    23  nobody:*:65534:65534:Unprivileged user:/nonexistent:/usr/sbin/nologin
    24  messagebus:*:556:556:D-BUS Daemon User:/nonexistent:/sbin/nologin
    25  polkit:*:562:562:PolicyKit Daemon User:/nonexistent:/sbin/nologin
    26  avahi:*:558:558:Avahi Daemon User:/nonexistent:/sbin/nologin
    27  gdm:*:92:92:GNOME Display Manager:/nonexistent:/sbin/nologin
    28  user:*:1001:0:User &:/home/user:/usr/local/bin/bash
11:06:37
$cat /etc/passwd | tail -15 | cat -n
     1  smmsp:*:25:25:Sendmail Submission User:/var/spool/clientmqueue:/usr/sbin/nologin
     2  mailnull:*:26:26:Sendmail Default User:/var/spool/mqueue:/usr/sbin/nologin
     3  bind:*:53:53:Bind Sandbox:/:/usr/sbin/nologin
     4  proxy:*:62:62:Packet Filter pseudo-user:/nonexistent:/usr/sbin/nologin
     5  _pflogd:*:64:64:pflogd privsep user:/var/empty:/usr/sbin/nologin
     6  _dhcp:*:65:65:dhcp programs:/var/empty:/usr/sbin/nologin
     7  uucp:*:66:66:UUCP pseudo-user:/var/spool/uucppublic:/usr/local/libexec/uucp/uucico
     8  pop:*:68:6:Post Office Owner:/nonexistent:/usr/sbin/nologin
     9  www:*:80:80:World Wide Web Owner:/nonexistent:/usr/sbin/nologin
    10  nobody:*:65534:65534:Unprivileged user:/nonexistent:/usr/sbin/nologin
    11  messagebus:*:556:556:D-BUS Daemon User:/nonexistent:/sbin/nologin
    12  polkit:*:562:562:PolicyKit Daemon User:/nonexistent:/sbin/nologin
    13  avahi:*:558:558:Avahi Daemon User:/nonexistent:/sbin/nologin
    14  gdm:*:92:92:GNOME Display Manager:/nonexistent:/sbin/nologin
    15  user:*:1001:0:User &:/home/user:/usr/local/bin/bash
11:06:42
$sudo tail -f /var/log/auth.log
Password:
sudo: pam_authenticate: conversation failure
11:06:59
$sudo tail -f /var/log/auth.log &
[1] 19860
[1]+  Stopped                 sudo tail -f /var/log/auth.log
11:07:02
$sudo tail -f /var/log/auth.log
Password:
May 18 10:26:01 fbsd3 sshd[9662]: Accepted keyboard-interactive/pam for user from 192.168.16.4 port 53881 ssh2
May 18 10:42:30 fbsd3 sshd[9672]: Received disconnect from 192.168.16.4: 11: disconnected by user
May 18 10:42:35 fbsd3 sshd[10029]: Accepted keyboard-interactive/pam for user from 192.168.16.4 port 52399 ssh2
May 18 10:42:58 fbsd3 sshd[10032]: Received disconnect from 192.168.16.4: 11: disconnected by user
May 18 10:43:02 fbsd3 sshd[10109]: Accepted keyboard-interactive/pam for user from 192.168.16.4 port 52400 ssh2
May 18 11:27:43 fbsd3 sshd[10119]: Received disconnect from 192.168.16.4: 11: disconnected by user
May 18 11:27:48 fbsd3 sshd[11470]: Accepted keyboard-interactive/pam for user from 192.168.16.4 port 47656 ssh2
May 18 11:28:18 fbsd3 sshd[11473]: Received disconnect from 192.168.16.4: 11: disconnected by user
May 18 11:28:22 fbsd3 sshd[11552]: Accepted keyboard-interactive/pam for user from 192.168.16.4 port 47657 ssh2
May 18 11:29:07 fbsd3 su: user to root on /dev/ttyp2
^Z
[2]+  Stopped                 sudo tail -f /var/log/auth.log
11:07:09
$bg
[2]+ sudo tail -f /var/log/auth.log &
11:07:11
$fg
sudo tail -f /var/log/auth.log
Password:
May 18 10:26:01 fbsd3 sshd[9662]: Accepted keyboard-interactive/pam for user from 192.168.16.4 port 53881 ssh2
May 18 10:42:30 fbsd3 sshd[9672]: Received disconnect from 192.168.16.4: 11: disconnected by user
May 18 10:42:35 fbsd3 sshd[10029]: Accepted keyboard-interactive/pam for user from 192.168.16.4 port 52399 ssh2
May 18 10:42:58 fbsd3 sshd[10032]: Received disconnect from 192.168.16.4: 11: disconnected by user
May 18 10:43:02 fbsd3 sshd[10109]: Accepted keyboard-interactive/pam for user from 192.168.16.4 port 52400 ssh2
May 18 11:27:43 fbsd3 sshd[10119]: Received disconnect from 192.168.16.4: 11: disconnected by user
May 18 11:27:48 fbsd3 sshd[11470]: Accepted keyboard-interactive/pam for user from 192.168.16.4 port 47656 ssh2
May 18 11:28:18 fbsd3 sshd[11473]: Received disconnect from 192.168.16.4: 11: disconnected by user
May 18 11:28:22 fbsd3 sshd[11552]: Accepted keyboard-interactive/pam for user from 192.168.16.4 port 47657 ssh2
May 18 11:29:07 fbsd3 su: user to root on /dev/ttyp2
May 18 12:07:34 fbsd3 sshd[19883]: Accepted keyboard-interactive/pam for user from 192.168.16.4 port 42028 ssh2
May 18 12:07:34 fbsd3 sshd[19883]: Accepted keyboard-interactive/pam for user from 192.168.16.4 port 42028 ssh2
^Z
[1]+  Stopped                 sudo tail -f /var/log/auth.log
/dev/ttyp3
11:07:34
$-
bash: -: command not found
/dev/ttyp1
11:07:53
$fg
sudo tail -f /var/log/auth.log
^Z
[1]+  Stopped                 sudo tail -f /var/log/auth.log
11:07:59
$bg
[1]+ sudo tail -f /var/log/auth.log &
11:08:01
$May 18 12:09:06 fbsd3 sshd[19886]: Received disconnect from 192.168.16.4: 11: disconnected by user
May 18 12:09:06 fbsd3 sshd[19886]: Received disconnect from 192.168.16.4: 11: disconnected by user
11:09:09
$jpbs
bash: jpbs: command not found
11:09:15
$jobs
[1]-  Running                 sudo tail -f /var/log/auth.log &
[2]+  Running                 sudo tail -f /var/log/auth.log &
11:09:18
$fg
sudo tail -f /var/log/auth.log
^C
11:09:22
$fg
sudo tail -f /var/log/auth.log
^C
11:09:26
$jobs

11:09:28
$vim names
--- /tmp/l3-saved-11599.29017.20289	2010-05-18 12:09:48.000000000 +0300
+++ names	2010-05-18 12:10:09.000000000 +0300
@@ -0,0 +1,3 @@
+Vitaliy
+Sergey
+Andrey
11:10:09
$cat names
Vitaliy
Sergey
Andrey
11:10:14
$cat names | sort
Andrey
Sergey
Vitaliy
11:10:19
$cat names | sort | tr -d [:lower:] [:upper:]
usage: tr [-Ccsu] string1 string2
       tr [-Ccu] -d string1
       tr [-Ccu] -s string1
       tr [-Ccu] -ds string1 string2
11:10:50
$cat names | sort | tr -c [:lower:] [:upper:]

11:11:01
$cat names | sort | sed 's/[:lower:]/[:upper:]/g'
And[:upper:][:upper:]y
S[:upper:][:upper:]g[:upper:]y
Vita[:upper:]iy
11:11:22
$cat names | sort | sed 's/[:lower:]/[:upper:]/'
And[:upper:]ey
S[:upper:]rgey
Vita[:upper:]iy
11:11:29
$man tr
11:12:15
$cat names | sort | tee > /tmp/tee | tr [:lower:] [:upper:]

11:12:45
$cat names | sort | tee /tmp/tee | tr [:lower:] [:upper:]
ANDREY
SERGEY
VITALIY
11:12:51
$cat /tmp/tee
Andrey
Sergey
Vitaliy
11:12:58
$cat names | sort | echo > /tmp/tee | tr [:lower:] [:upper:]

11:13:50
$cat /tmp/tee

11:13:54
$cat names | sort | tee /tmp/tee | tr [:lower:] [:upper:]
ANDREY
SERGEY
VITALIY
11:14:02
$cat /tmp/tee
Andrey
Sergey
Vitaliy
11:14:03
$cat names | sort | tee /tmp/tee | tr [:lower:] [:upper:]
ANDREY
SERGEY
VITALIY
11:14:47
$ls
11:47:51                        Tue
18                              Tue May 18 11:48:12 EEST 2010
2010                            names
EEST                            sorted_names
May
11:23:00
$touch -1
touch: illegal option -- 1
usage:
touch [-A [-][[hh]mm]SS] [-acfhm] [-r file] [-t [[CC]YY]MMDDhhmm[.SS]] file ...
11:23:08
$touch \-1
touch: illegal option -- 1
usage:
touch [-A [-][[hh]mm]SS] [-acfhm] [-r file] [-t [[CC]YY]MMDDhhmm[.SS]] file ...
11:23:11