> to put `-u` (nounset) in your shebang Any particular reason why in the shebang instead of set -u? > The only exception I typically run across is expansion o

> to put `-u` (nounset) in your shebang Any particular reason why in the shebang instead of set -u? > The only exception I typically run across is expansion of arrays using "${arr[@]}" syntax In Bash? Works for me. Edit: another comment mentions it as well. Seem to behave better in newer versions of Bash and only problematic in <= 4.3 https://news.ycombinator.com/item?id=38397241 https://news.ycombinator.com/item?id=38397241 $ bash -uc 'unset x; echo "=> ${x[@]}"' => $ bash -uc 'x=(); echo "=> ${x[@]}"' => $ bash -uc 'x=(); echo "=> ${x[0]}"' bash: x[0]: unbound variable Zsh does not like the first example but both should support: $ bash -uc 'unset x; echo "=> ${x[@]:-null}"' => null > Also handy is `-e` (errexit), It is unfortunately very confusion with functions. Made me like it less over the years.