X-Spam-Check-By: sourceware.org Message-ID: <4424BF9E.4020502@byu.net> Date: Fri, 24 Mar 2006 20:57:18 -0700 From: Eric Blake User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: Re: The binary "[.exe" References: <31DDB7BE4BF41D4888D41709C476B6570246AEAE AT NIHCESMLBX5 DOT nih DOT gov> In-Reply-To: <31DDB7BE4BF41D4888D41709C476B6570246AEAE@NIHCESMLBX5.nih.gov> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Buchbinder, Barry (NIH/NIAID) [E] on 3/24/2006 7:59 PM: > > Are they supposed to be different? Yes. "[" requires a final "]" argument, while "test" does not. And POSIX requires that "test --help" and "[ --help ]" both return success (0) without output. Only [ can print a help message, and only when you use a syntax that is not specified by POSIX (namely, "[ --help". "man test" shows 5 forms (2 for test and 3 for [) for that very reason. - -- Life is short - so eat dessert first! Eric Blake ebb9 AT byu DOT net -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.1 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFEJL+c84KuGfSFAYARAs6wAKDVa1Rk+9PvJWwhIRpb3QcVDWoT2gCgrtTd 76Q+qzIZMzu0mYnCJqhY9oE= =SRDa -----END PGP SIGNATURE----- -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/