ed is Way Better than Regex GolfI’m realizing that learning ed — particularly the g/ command, the
parent of grep — is a way more effective use of learning time than
playing around with regular expression golf. You can create a simple
buffer and edit it, then use different commands to see if you can
successfully modify the buffer and match several lines at a time. I
would never have seen that coming had I not played around with in for an
hour or two. The regular expressions learned are of the BRE and ERE
versions, same as grep so they immediately apply to everything else a
person learns about the command line (unlike PCRE, which are included in
pretty much every programming language, and are easy to pickup once a
person has learned ERE).