Cleanup in Bash Scripts

[Brain dump so I don’t forget this one]

So you want your bash script to exit on an error but you’d like it to clean some stuff up before it closes after the error occurs.

No problem a TRAP can do this for you (read detailed docs for caveats).

In a very simple form it looks like this:

	#!/bin/bash
	set -e

	function cleanup()
	{
	echo -e "—-> Trap caught! Do cleanup here"
	}
	trap cleanup EXIT

	# imagine some stuff happens here
	# and it exists
	exit 1

view raw trap.sh hosted with ❤ by GitHub

Using Trap to fire cleanup on exit

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