Challenge Yourself
See following bash code and answer what the output is without running it
https://github.com/vumdao/bash/blob/master/bash_test/wq.sh
#!/bin/bash
set -e
mutex_test() { return -23; }
mutex_test
echo $?
echo "Done"
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Top comments (2)
I use the
shellcheck
tool as described here:devdojo.com/guide/bash/debugging-a...
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.
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.