This repository has been archived by the owner on Sep 30, 2020. It is now read-only.
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"set -e" will capture when a line of code fails. However, for a
pipeline such as "false | true", it will only handle the exit code
of the last command. In this case, the exit code will always be 0.
"set -o pipefail" will ensure that any failure in the pipeline results
in the whole line failing, which will then be handled correctly by
"set -e"
For example:
$ set +o pipefail ; false | true ; echo $?
0
$ set -o pipefail ; false | true ; echo $?
1