Create a directory before you cp or mv a file to it
Not an exciting snippet, but one I should remember – the bash builtins really aren’t too bad for creating a directory before it exists when you mv/cp:
mkdir -p "$(dirname "$dst")"
cp "$src" "$dst"
I actually don’t know if I’ve done this before (vs just copying the directory name into mkdir -p), but this is a bit more DRY. I spotted it when working in a script that already makes extensive use of basename and dirname.