How to unset environment variable
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In bash
:
bash-3.2$ echo $EDITOR vim bash-3.2$ unset EDITOR bash-3.2$ echo $EDITOR
In fish
:
Downloads $ echo $EDITOR vim Downloads $ set -e EDITOR Downloads $ echo $EDITOR
A common use case is that editing the .profile
does not remove environment variables that have been commented out, so they need to be erased manually. Perhaps a fancy script could parse the .profile
and find commented out settings, then unset them.