From: "Drew Adams" <drew.adams@oracle.com>
Subject: RE: grep command doc - point out that you can chain now
Date: Mon, 17 Jul 2006 21:22:22 -0700 [thread overview]
Message-ID: <EIENLHALHGIMHGDOLMIMGEMOCJAA.drew.adams@oracle.com> (raw)
In-Reply-To: <17596.18378.277549.697431@kahikatea.snap.net.nz>
> I don't think it should be pointed out in the manual
> because you would expect it to work.
>
> It never occurred to me, so I think it is worth mentioning in the
> Emacs Manual. I will add it to the manual.
Probably because you knew it didn't work in the past.
Yes, I said that myself.
And, I added, also because what you type is apparently not the arguments to
the Unix/GNU-Linux `grep' command, but something possibly much richer. Even
if someone were not used to Emacs 20 `grep' behavior, if s?he were used to
the Unix/GNU-Linux `grep' command, then s?he would expect to be inputting
just the `grep' args, no?
It still doesn't work for users with versions of grep which don't
have the -H option, so they will be confused by your description.
Do you mean Eli's description? I didn't describe it, beyond mentioning
piping. Eli gave a real description of what's going on, presumably.
I didn't know that either (-H), BTW. That too is worth pointing out. IOW,
what you type is different for different `grep's - in one case it is the
`grep' args; in another case it is "_any_ shell command whose output
resembles that of Grep."
Those behavior differences are certainly worth pointing out, unless they are
part of the `grep -H' doc. IOW, is what you type the expected arguments for
`grep -H', or is it something special that Emacs (only) allows? Does
`grep -H' _itself_ allow "_any_ shell command whose output resembles that
of Grep."?
If this is part of the behavior of `grep -H' itself, then I guess it
wouldn't need to be documented in Emacs. It's not clear to me what the story
is. When I do `M-x man RET grep', and look for -H, it says "Print the
filename for each match." That can't be what this is about, can it? Yet,
with that same `grep' (it says "GNU Project 2002/01/22" in the footer), I
get the magical piping. Isn't some explanation necessary? Is this an Emacs
`grep' feature or a Unix/GNU-Linux `grep' feature that Emacs manifests?
next prev parent reply other threads:[~2006-07-18 4:22 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-17 3:39 grep command doc - point out that you can chain now Drew Adams
2006-07-17 7:26 ` David Kastrup
2006-07-17 8:19 ` Nick Roberts
2006-07-17 15:28 ` Drew Adams
2006-07-17 17:59 ` Eli Zaretskii
2006-07-17 18:20 ` Drew Adams
2006-07-18 0:12 ` Richard Stallman
2006-07-18 2:30 ` Nick Roberts
2006-07-18 4:22 ` Drew Adams [this message]
2006-07-18 5:02 ` Nick Roberts
2006-07-18 5:53 ` Drew Adams
2006-07-18 15:00 ` Richard Stallman
2006-07-18 14:59 ` Richard Stallman
2006-07-18 21:12 ` Nick Roberts
2006-07-19 6:05 ` Richard Stallman
2006-07-19 7:02 ` Nick Roberts
2006-07-19 8:52 ` Drew Adams
2006-07-19 9:05 ` Nick Roberts
2006-07-19 21:15 ` Richard Stallman
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