@JeremyCherfas I've only just started myself, for the same reason that you would benefit for them — time invested now is a lot of time saved in the future. All of my scripts to this point have been either for Handbrake or file renaming, which begins with for f in ./*; do (do everything below on every file in the current directory) and ends with done. "if" statements go well with that kind of script, as does a working knowledge of the basic command line tools like awk, sed, cut, grep, cp, mv, rm.
// @jws