Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

The subject says it all, how to rehash the available executables available within one of the $PATHs after having changed things: e.g. removed a binary from one $PATH which is available in another $PATH, changed the $PATH-variable.

share|improve this question
up vote 29 down vote accepted

hash -r is what needs to be done. In zsh it is rehash and rehash doesn't exist (by default) in bash.

share|improve this answer
rehash is hash -r in zsh. – Ярослав Рахматуллин Oct 22 '12 at 12:25
@Jaroslav didn't know, thanks (sry for writing your name in latin). – Patrick B. Oct 22 '12 at 15:04

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.