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A bash pitfall which I have experienced but didn’t see mentioned is the behavior of the `set -e` (errexit) option when using command substitution. If you expect

A bash pitfall which I have experienced but didn’t see mentioned is the behavior of the `set -e` (errexit) option when using command substitution. If you expect failures within the command substitution to cause the script to exit, you’re gonna be confused. https://twitter.com/hellsmaddy/status/1273744824835796993?s=21 https://twitter.com/hellsmaddy/status/1273744824835796993?s=... Tl;dr use `shopt -s inherit_errexit`

Anthony-G 6y ago
Thanks. I wasn't aware of that option. I've added the following to my Bash-specific shell scripts: # Cause command substitution to inherit the value of the `errexit` option. # Introduced in Bash 4.4 if [ "${BASH_VERSINFO[0]}" -gt 4 ] || { [ "${BASH_VERSINFO[0]}" -eq 4 ] && [ "${BASH_VERSINFO[1]}" -ge 4 ]; }; then shopt -s inherit_errexit fi