Suppose a shell script (/bin/sh or /bin/bash) contained several commands. How can I cleanly make the script terminate if any of the commands has a failing exit status? Obviously, one can use if blocks and/or callbacks, but is there a cleaner, more concise way? Using && is not really an option either, because the commands can be long, or the script could have non-trivial things like loops and conditionals.
bash, you can
$ help set ... -e Exit immediately if a command exits with a non-zero status.
It also works (from what I could gather) with
zsh. It also should work for any Bourne shell descendant.
tcsh, you have to launch your script with
May be you could use:
$ <any_command> || exit 1