Useful Commands in Ubuntu Linux

This list provides some simple command line examples. To open a terminal emulator window, click the Gnome Applications menu and select Accessories → Terminal, then, use these commands:

• clear Clears the current screen of all text.

  
  



• ls Lists the current directory.

  
  

  It's like the MS-DOS dir command.

  
  



• ls dir Lists the specified directory.

  
  



• cat file Concatenates (adds) the contents of the file to your screen.

  
  

  It's like the MS-DOS type command.

  
  



• more file Displays the file one page at a time.

  
  



• tail file Displays the file one page at a time from the end of the file.

  
  



• pwd Shows name of the current directory.

  
  



• cd dir Changes to the specified directory.

  
  

  It's like the MS-DOS chdir command.

  
  

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