I learned Unix in the mid 80s but it wasn't until sometime later I learned or had the epiphany that grep was shorthand for g/re/p. As in global search for regu

I learned Unix in the mid 80s but it wasn't until sometime later I learned or had the epiphany that grep was shorthand for g/re/p. As in global search for regular expression and print the results. Talk about a forehead slapping moment. Not everything in Unix is immediately obvious.