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Comment by vbezhenar | Hacker News Reader

I long adopted

    /bin/sh -eu

header in my scripts. It's a must-have.

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If you mean as a shebang (#!/bin/sh -eu), I would suggest switching to using "set" instead, because the shebang will not be interpreted if the script is ran as "sh script.sh" (as opposed to ./script.sh).

Perdon my ignorance, but what do those do? Searching for it doesn't give me anything.

See https://www.gnu.org/software/bash/manual/bash.html#The-Set-B..., in short -e makes scripts exit if a command fails, and -u makes them exit if a variable is undefined.

If you think your colleagues won't know this, "set -o errexit; set -o nounset" would be easier for them to search on.

(Via "3.4 Shell Parameters" → "3.4.1 Positional Parameters" → "4 Shell Builtin Commands", or searching the whole page for "-e".)

Thank you very much, I appreciate it.

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