Quick Reference List Of Unix Commands

General Commands

• passwd - change your password
• exit, logout - log out
• man - display Unix manual pages

Information

• cal - display a calendar (for calendar software use Google Calendar)
• date - display today's date
• whoami - display your login name
• quota - view your quota
• hostname - display the computer's name
• w - who else is using the computer

File Handling

• emacs, pico, vi - editors
• cat > file - type in a file
• cat file - display a file
• more, less - display file a page at a time

   

• ls - list files
• rm - delete files
• mv - rename files
• cp - copy files

   

• cd - change directory
• pwd - show current directory
• mkdir - create directory
• rmdir - remove empty directory

   

• chmod - change access permissions on existing files
• umask - change default access permissions for new files

Printing

• lpr - print file
• lpq - list print jobs
• lprm - cancel print jobs

Email, WWW And Networking

• thunderbird, pine, mutt - read and send email (webmail is another option)
• firefox, google-chrome - browse the World Wide Web
• lynx, w3m - browse the World Wide Web (text only)
• ssh - connect from one machine to another securely
• scp, ftp - transfer files between machines
• pidgin - Internet Relay Chat client

Process Management

• ps - list processes
• top - list all processes, starting with those taking the most CPU time
• srun command - add a simple command to the queing system
• command & - run command in the background
• nice command & - run command in the background at a reduced priority
• kill - kill a process