====== bash ======
This is actually a unix tools overview as well, but since my unix experience always starts out with the bash shell, I'm listing everything here.

  * [[awk]]
  * [[bash loop]]
  * [[pause]]
  * [[profile]]
  * [[recursively list files and directories]]
  * [[remove files older_than]]
  * [[rename multiple files]]
  * [[search and replace in files]]
  * [[sed]]
  * [[tree]]
  * [[vi style]]