Thus said Paul Vixie on Sat, 17 Mar 2018 08:55:41 -0700:
i have not run comp without first setting VISUAL for at least two
decades, but when i used to do this, it would print a message like
"type your message below, and then hit control-D" and then read from
standard input. when did that change to requiring an external editor?
I generally don't set VISUAL or EDITOR unless I absolutely have to (e.g.
on Ubuntu which defaults to nano) as I generally expect vi to be the
default.
$ set | grep -E '(EDITOR|VISUAL)'
$ echo $?
1
Andy
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