CODEWITHSUNDEEP
bash
qed
qed

Reputation: 23114

How to make bash execute a script every time it exits?

I want to execute some commands every time I exit from bash, but cannot find a way to do it. There is a ~/.bash_logout file for when you are logging out, but normally we use interactive shell instead of login shell, so this is not very useful for this purpose.

Is there a way to do this? Thanks!

Upvotes: 2

Views: 102

Answers (1)

chepner
chepner

Reputation: 531325

You can trap the EXIT signal.

exit_handler () {
  # code to run on exit
}

trap 'exit_handler' EXIT

Techinically, trap exit_handler EXIT would work as well. I quoted it to emphasize that the first argument to trap is a string that is essentially passed to eval, and not necessarily a single function name. You could just as easily write

trap 'do_this; do_that; if [[ $PICKY == yes ]]; then one_more_thing; fi' EXIT

rather than gather your code into a single function.

Upvotes: 5

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