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Date: Mon, 1 Dec 2025 17:14:05 +0300
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Разбирался тут с подсказками shellcheck, и обнаружил следующее.

Вот такой скрипт не выполняет функцию func:

#!/bin/bash
func()
{
  echo "---" "$1"
}
i="abc:123"
echo $i
v="$(func ${i%%:*})"
# echo "$v"
# END

Если `echo` раскомментировать, то он выполняет функцию func, и 
допечатывает "--- abc".

Вопрос. Bash "выкидывает" неиспользуемые ветви кода? Есть ли у него 
встроенная оптимизация?

--