X-Recipient: archive-cygwin AT delorie DOT com
DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:mime-version:in-reply-to:references:date
	:message-id:subject:from:to:content-type; q=dns; s=default; b=sb
	9B3MYSLvSMNHoiNNtygR+huDW3J6LJkQZCCJjGcs46cT1vIh5SYKyIohRRqrPpm8
	RLV1qup7r6vkOIKUGpR6XdRaIPsJ2DpoCu9fWTbOHvudqamUGyhwKWl04YCVycpR
	vacOajbd2wxou9KLV5hHOeKoFej3oNEVa5BM3FOsY=
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:mime-version:in-reply-to:references:date
	:message-id:subject:from:to:content-type; s=default; bh=3EWuwxdC
	2QrIYBqUUVUABUkGw8o=; b=xGaofVPMDG/C9/m0dtdUPLzKp/CKUzScw+bbKCeu
	zru80SbfxV0MJd8dEQa8PcnbeYQehGmO3/NszbxntjafEZG7DG3oLEg+e08bZfJe
	WlOr7E0TiFHuYI3Y9Zgfo8FmCevR2RZAeHbiLIihIyHIfyGmLqJSK44gO9Is7Wz9
	BNM=
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Authentication-Results: sourceware.org; auth=none
X-Virus-Found: No
X-Spam-SWARE-Status: No, score=-2.2 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2
X-HELO: mail-wg0-f52.google.com
MIME-Version: 1.0
X-Received: by 10.180.73.115 with SMTP id k19mr3893575wiv.35.1409820695502; Thu, 04 Sep 2014 01:51:35 -0700 (PDT)
In-Reply-To: <CAMQzRBrsYe4BDijn=B2V6TkKt7Gv_ZqTEcWXmpaJ437A8ZgHYA@mail.gmail.com>
References: <CAMQzRBrsYe4BDijn=B2V6TkKt7Gv_ZqTEcWXmpaJ437A8ZgHYA AT mail DOT gmail DOT com>
Date: Thu, 4 Sep 2014 10:51:35 +0200
Message-ID: <CAEhDDbDan+CjB8Aytr2oeNo0yvj_kx7wnZmRa=hoZR=RW=T9YQ@mail.gmail.com>
Subject: Re: cygwin rename util doesn't parse leading dash in expression argument correctly (thinks it is an option)
From: Csaba Raduly <rcsaba AT gmail DOT com>
To: cygwin list <cygwin AT cygwin DOT com>
Content-Type: text/plain; charset=ISO-8859-1

Hi

On Tue, Sep 2, 2014 at 4:43 PM, Dat Head  wrote:
> Cygwin 1.7.30-1
>
> $ ls -l *-fixed.flac
> -rw-r--r-- 1 foo None 0 Sep  1 13:47 a-fixed.flac
> -rw-r--r-- 1 foo None 0 Sep  1 13:47 b-fixed.flac
>
> $ rename '-fixed' '' *-fixed.flac
> rename: unknown option -- f
>
> Usage:
>  rename [options] expression replacement file...
>
> Options:
>  -v, --verbose    explain what is being done
>  -V, --version    output version information and exit
>  -h, --help       display this help and exit

This is not a Cygwin problem. Unix tools usually interpret an argument
starting with a dash as options:

csabaraduly AT ubu:/tmp/ren $ uname -a
Linux ubu 3.13.0-35-generic #62-Ubuntu SMP Fri Aug 15 01:58:42 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux

csabaraduly AT ubu:/tmp/ren $ cat /etc/issue
Ubuntu 14.04.1 LTS \n \l

csabaraduly AT ubu:/tmp/ren $ ls -l *-fixed.flac
-rw-rw-r-- 1 csabaraduly csabaraduly 0 Sep  4 10:42 a-fixed.flac
-rw-rw-r-- 1 csabaraduly csabaraduly 0 Sep  4 10:42 b-fixed.flac

csabaraduly AT ubu:/tmp/ren $ rename '-fixed' '' *-fixed.flac
Unknown option: i
Unknown option: x
Unknown option: e
Unknown option: d
Usage: rename [-v] [-n] [-f] perlexpr [filenames]


Marco already showed how to stop an argument with a leading dash from
being treated as options.

Csaba
-- 
GCS a+ e++ d- C++ ULS$ L+$ !E- W++ P+++$ w++$ tv+ b++ DI D++ 5++
The Tao of math: The numbers you can count are not the real numbers.
Life is complex, with real and imaginary parts.
"Ok, it boots. Which means it must be bug-free and perfect. " -- Linus Torvalds
"People disagree with me. I just ignore them." -- Linus Torvalds

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple