From: David Greaves <david@dgreaves.com>
To: Philip Pokorny <ppokorny@mindspring.com>
Cc: Git Mailing List <git@vger.kernel.org>
Subject: Re: Why /usr/bin/env in scripts
Date: Mon, 25 Apr 2005 10:42:45 +0100 [thread overview]
Message-ID: <426CBB95.9040203@dgreaves.com> (raw)
In-Reply-To: <426C9E63.4050907@mindspring.com>
Philip Pokorny wrote:
> I notice that the first line of the pasky shell scripts is
>
> #!/usr/bin/env bash
> So what am I missing? Is this a portability aid?
man env:
The first remaining argument specifies the program name to invoke;
it is searched for according to the `PATH' environment variable. Any
remaining arguments are passed as arguments to that program.
It's a trick to do a PATH search for a script interpreter rather than
hard coding the path.
Now all we have to do is make sure every distro on the planet has
/usr/bin/env - and they do.
David
next prev parent reply other threads:[~2005-04-25 9:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-25 7:38 Why /usr/bin/env in scripts Philip Pokorny
2005-04-25 9:42 ` David Greaves [this message]
2005-04-25 17:45 ` David A. Wheeler
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