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