Comment by krallin

While not as common as nounset and errexit, pipefail is a useful option as well (set -o pipefail).

Using pipefail, if any program in a pipeline fails (i.e. exit code != 0), then the exit code for the pipeline will be != 0.

E.g. pipefail can be useful to ensure `curl does-not-exist-aaaaaaa.com | wc -c` doesn't exit with exit code 0..!