What is the meaning of set -e -o pipefail?

Question

What is the meaning of the below command? I am new in shell scripting.

set -e -o pipefail

Read `man bash`. It will tell you about the `set` builtin. – waltinator Jul 09 '20 at 05:21 — waltinator, Jul 09 '20 at 05:21

score 38 · Answer 1 · edited Aug 05 '21 at 08:25

End the script immediately if any command or pipe exits with a non-zero status.

I don't usually use these two flags, but if you're just getting started shell scripting, this would be like turning on warnings or strict mode in other languages.

-e

Exit immediately if a command exits with a non-zero status.

-o <option-name>

Sets the <option-name> flag. In this case, it sets the pipefail option.

pipefail

If set, causes the pipeline to return the exit status of the last (rightmost) command to exit with a non-zero status. It returns zero if all commands in the pipeline exit successfully. This option is disabled by default.

and `-o` stays for `--option-name`. – Kamafeather Dec 15 '20 at 19:51 — Kamafeather, Dec 15 '20 at 19:51

What is the meaning of set -e -o pipefail?

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