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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
  • command & - run command in the background
  • nice command & - run command in the background at a reduced priority
  • kill - kill a process