If I want to write better shell scripts I usually run shellcheck and adjust accordingly or if I need facilities not provided by the shell I switch to a full fle

If I want to write better shell scripts I usually run shellcheck and adjust accordingly or if I need facilities not provided by the shell I switch to a full fledged programming language. And oh yes, `sh` is present almost on every BSD and Linux box for free so I consider it an important thing to at least be comfortable with. shellcheck: https://www.shellcheck.net/ https://www.shellcheck.net/