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

Is it possible to source a shell file when entering a directory, and unsource it when I leave? I.e. certain project directories would be really useful to autoload some command aliases, but only in that context.

share|improve this question

You can define precmd or preexec hook function to setup such customization. Not sure which one is better in your case. So if the command is cd or chdir, do something you want. The cmdline is a single arg that will be passed to your hook function so you need to do some parsing.

share|improve this answer

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.