6 Jan
2020
6 Jan
'20
3:21 a.m.
On Sat, 4 Jan 2020, Chet Ramey wrote:
Yes, that's what I meant.
Which reminds
me: which Shell introduced "#" as a true comment?
Define "true comment." The v7 shell had `#' as the comment character, but
it only worked when in non-interactive shells. I think it was the Sys III
shell that made it work when the shell was interactive. This is, incidentally, why bash has the
`interactive_comments' option,
which I saw in another message. BSD, which most of the GNU developers were
using at the (pre-POSIX) time, used the v7 shell and didn't have
interactive comments. When a sufficiently-advanced POSIX draft required
them, we added it.
I never did catch up with all the options on the various shells; I just
stick with the defaults in general. Eg:
aneurin% man bash | wc -l
5947
Life's too short...
-- Dave