From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnold@skeeve.com (arnold@skeeve.com) Date: Sun, 25 Feb 2018 06:56:08 -0700 Subject: [TUHS] EOF on pipes? In-Reply-To: References: <201802251307.w1PD7AVI013492@coolidge.cs.Dartmouth.EDU> Message-ID: <201802251356.w1PDu8jJ028334@freefriends.org> George Michaelson wrote: > Designing things is hard. I guess the reality is, you do the bare > minimum neccessary to make it work. Anything else is adding cost. Amen! > (I hesitate to say <- and -> might have worked too. few pipes are > bi-directional. Also, the = is being used in ls -lF to denote what > things are non-normal files...) The = as part of the -F option originates from BSD. It was in 4.2 for sure (circa 1983); I don't know if it appeared any earlier. But this is close to 10 years after | was invented for pipes. Arnold