From: Lennart Borgman <lennart.borgman@gmail.com>
To: Andreas Roehler <andreas.roehler@online.de>
Cc: help-gnu-emacs@gnu.org
Subject: Re: system-command-exists-p
Date: Mon, 7 Dec 2009 17:30:51 +0100 [thread overview]
Message-ID: <e01d8a50912070830ma59f1d4hba9682bc59ebf6c6@mail.gmail.com> (raw)
In-Reply-To: <4B1CAC27.4060802@online.de>
On Mon, Dec 7, 2009 at 8:17 AM, Andreas Roehler
<andreas.roehler@online.de> wrote:
>
> Hi,
>
> needed a check if a command exists on system.
> Employed the following:
>
> (defun system-command-exists-p (command)
> "Return t if COMMAND is available on system. "
> (let* ((cmd (format "type %s" command)))
> (eq 0 (shell-command cmd))))
>
> Any comments/suggestions?
"type" is a system specific command. It may be worth trying to use
something not system specific to avoid trouble (maybe wasting your
time and other peoples time otherwise).
next prev parent reply other threads:[~2009-12-07 16:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-07 7:17 system-command-exists-p Andreas Roehler
2009-12-07 16:30 ` Lennart Borgman [this message]
[not found] <mailman.12411.1260170302.2239.help-gnu-emacs@gnu.org>
2009-12-07 10:13 ` system-command-exists-p Pascal J. Bourguignon
2009-12-07 12:02 ` system-command-exists-p Andreas Röhler
[not found] ` <mailman.12419.1260187409.2239.help-gnu-emacs@gnu.org>
2009-12-07 13:44 ` system-command-exists-p Pascal J. Bourguignon
2009-12-07 16:22 ` system-command-exists-p Andreas Politz
2009-12-07 16:00 ` system-command-exists-p Stefan Monnier
2009-12-07 18:57 ` system-command-exists-p Andreas Röhler
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