Learning basic regex (regular expressions) will save literal days (maybe weeks) of time when editing code, text, or searching/organizing anything. I can't think

Learning basic regex (regular expressions) will save literal days (maybe weeks) of time when editing code, text, or searching/organizing anything. I can't think of a single skill more useful on a computer. While regex turns pretty hard fast, the basics can be picked up within an hour, or at least the ability to know what to reference when something needs to be done.