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馃殌 Vu Dao 馃殌
馃殌 Vu Dao 馃殌

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Quick Test Your Bash Shell

Challenge Yourself

See following bash code and answer what the output is without running it

set -e

mutex_test() { return -23; }


echo $?

echo "Done"
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Top comments (2)

bobbyiliev profile image
Bobby Iliev

I use the shellcheck tool as described here:

You can use their website directly or you could install the CLI tool as well.

It is very handy, it gives you some suggestions on some best practices too.

moopet profile image
Ben Sinclair

If you run it via bash or make it executable and run it, it'll presumably either display nothing (which is what I expect to happen because -23 is non-zero and set -e means bomb out whenever anything returns non-zero) or possibly display -23 (if it doesn't count in a function, but I don't think that's the case).

If you source/dot the file to run it in the current context, you'll end up closing your shell.