[avl999]

Shellcheck https://github.com/koalaman/shellcheck : Shell scripts are unavoidable, you have to write one every now and then but shell is a terrible language with massive footguns around every corner. I don't write shell scripts extensively enough to remember all those footguns and even if I did, not sure I'd want to waste brainpower remembering all that archaic trivia.

Shellcheck makes writing shell scripts bearable and dare I say somewhat enjoyable. They have managed to collate all the shell scripting potholes and tribal knowledge into one static analysis tool. No shell script now gets checked in at work or on my personal machine without being pumped through shellcheck.