Re:Ask HN: Why “hello world” and “foo:bar”?
by floxy on Wednesday December 14, 2022 @07:43PM
(#33993268)
Pretty sure the "Hello, World" got its start from the first program used in "The C Programming Language" by Kernighan and Ritchie, back in 1978. I've always presumed the foo and bar come from FUBAR[0] which seems to have originated in WWII army lingo.
[0] https://en.wiktionary.org/wiki/FUBAR