From: pjb@informatimago.com (Pascal J. Bourguignon)
To: help-gnu-emacs@gnu.org
Subject: Re: Why can't I use xargs emacs?
Date: Tue, 02 Feb 2010 23:40:30 +0100 [thread overview]
Message-ID: <87tytzw9b5.fsf@informatimago.com> (raw)
In-Reply-To: p4em37xiau.ln2@news.ducksburg.com
Adam Funk <a24061@ducksburg.com> writes:
> The emacs command can take a list of filename arguments, so why can't
> I get xargs to work with it?
>
> $ find -name '*.txt' |xargs emacs -nw
> emacs: standard input is not a tty
>
> $ grep -rl 'foo' some/path |xargs emacs -nw
> emacs: standard input is not a tty
emacs is an interactive program. It expects its stdin and stdout to
be hooked to the terminal, where it can display a character matrix,
and from which it can read user input.
When you use a pipe to send paths to xargs, you disconnect the
terminal from the stdin, and replace it with a pipe. When xargs forks
and exec emacs, emacs inherit this pipe as stdin, and cannot get user
input, but will get instead further path from grep.
% echo hello > file ; ( echo -b ; echo file ) | xargs -L 1 cat
hello
To open several files in emacs, you could either use emacsclient, or
an emacs lisp script.
Launch emacs in a separate terminal: xterm -e emacs -nw &
In emacs, start the server: M-x server-start RET
In a shell, you can then type: find -name '*.txt' | xargs emacsclient -n
Simplier would be to just open the file in emacs:
Launch emacs: emacs -nw
Then type: C-x C-f *.txt RET
For the second case, you could type:
M-: (map nil 'find-file (split-string (shell-command-to-string "grep -rl 'foo' some/path") "\n")) RET
--
__Pascal Bourguignon__
next prev parent reply other threads:[~2010-02-02 22:40 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-02 20:22 Why can't I use xargs emacs? Adam Funk
2010-02-02 21:14 ` Bit Twister
2010-02-03 11:14 ` Andreas Röhler
2010-02-03 14:18 ` Adam Funk
2010-02-02 21:35 ` Bill Marcum
2010-02-03 7:23 ` Thierry Volpiatto
[not found] ` <mailman.634.1265182143.14305.help-gnu-emacs@gnu.org>
2010-02-03 14:21 ` Adam Funk
2010-02-06 7:45 ` Jorgen Grahn
2010-02-06 19:37 ` Adam Funk
2010-02-02 22:40 ` Pascal J. Bourguignon [this message]
2010-02-03 3:40 ` Ivan Shmakov
2010-02-02 22:56 ` Pascal J. Bourguignon
2010-02-02 23:51 ` Harald Hanche-Olsen
2010-02-03 14:12 ` hymie!
2010-02-03 14:20 ` Adam Funk
2010-02-03 16:19 ` Thierry Volpiatto
[not found] ` <mailman.645.1265214302.14305.help-gnu-emacs@gnu.org>
2010-02-03 21:15 ` Adam Funk
2010-02-04 12:08 ` Andreas Röhler
2010-02-11 3:19 ` David Combs
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