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A comment on $ sudo rm -rf / === NPM install. Parent comment

Re:$ sudo rm -rf / === NPM install by OJFord on Tuesday November 09, 2021 @07:32PM (#29169540)
I don't recall which one it is (u for unset perhaps?) but I cover this by starting every (bash, E and pipefail are not POSIX) script with `set -eEuo pipefail`. All should be the default IMO, I don't understand - other than back-compat - why you wouldn't want them.
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Re:$ sudo rm -rf / === NPM install by SAI_Peregrinus on Tuesday November 09, 2021 @09:05PM (#29170288)
It's -u.

You can also prevent this by never using $VAR, and instead always using ${VAR:?} to exit with error if VAR is unset (or use one of the other options to provide a default).

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