Intro to UNIX

Bash Tricks

• Filename Completion:
  • Type part of the filename, then use tab key.
  • If you haven't typed enough to uniquely identify the file, it will only complete as far as it can, then pause. Hit the tab key again to have it show you the possibilities, type just enough letters to get past the ambiguity, then hit the tab key again.
• Rerun a previous command:

  up arrow	rerun last command
  !!	rerun last command
  !gr	rerun last command that started with "gr"

• Edit a previous command:
  • Use up-arrow and emacs commands
  • If you prefer vi, add set -o vi to your .bashrc file, then re-execute your .bashrc by typing . .bashrc (you only have to do that once). From then on, use ESC to get to command mode, use up-arrow or k to move up, use /pattern to search for a pattern in previous commands, and use normal vi commands to edit.