Various Unix/Linux commands discussed:
Cat (Unix)
Cd (command)
Chmod
Chown
Chgrp
Cksum
Cmp (Unix)
Cp (Unix)
Dd (Unix)
Du (Unix)
Df (Unix)
File (command)
Fsck
Fuser (Unix)
Ln (Unix)
Ls
Lsattr
Lsof
Mkdir
Mount (Unix)
Mv
Pax (Unix)
Pwd
Rm (Unix)
Rmdir
Size (Unix)
split (Unix)
Tee (command)
touch (Unix)
Type (Unix)
Umask
Processes
At (Unix)
Bg (Unix)
Chroot
Cron
Fg (Unix)
Kill (Unix)
Killall
Nice (Unix)
Pgrep
Pidof
Pkill
Ps (Unix)
Pstree
Time (Unix)
Top (software
User environment
Clear (Unix)
Env
Exit (command)
Finger protocol
History (Unix)
Id (Unix)
Logname
Mesg
Passwd (command)
Su (Unix)
Sudo
Uptime
Talk (software)
Tput
Uname
W (Unix)
Wall (Unix)
Who (Unix)
Whoami
Write (Unix)
Text processing
AWK
Banner (Unix)
Basename
Comm
Csplit
Cut (Unix)
Dirname
Ed (text editor)
Ex (text editor)
Fmt (Unix)
Head (Unix)
Iconv
Join (Unix)
Less (Unix)
More (command)
Paste (Unix)
Sed
Sort (Unix)
Spell (Unix)
Strings (Unix)
Tail (Unix)
Tr (Unix)
Uniq
Vi
Wc (Unix)
Xargs
Shell builtin
Alias (command)
Echo (command)
Expr
Printf
Sleep (Unix)
test (Unix)
True and false (commands)
Unset
Wait (command)
Yes (Unix)
Inetd
Host (Unix)
Ifconfig
Netstat
Nslookup
Ping
Rdate
Rlogin
Netcat
OpenSSH
Traceroute
Searching
find Grep
Locate (Unix)
Whatis
Whereis
Which (Unix)
Documentation
Apropos (Unix)
Help (command)
Info (Unix)
Man page
Bc programming language
Dc (Unix)
Cal (Unix)
Date (Unix)
Lp (Unix)
Lpr