Mailing-List: contact cygwin-help AT sourceware DOT cygnus DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT sources DOT redhat DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin/>
List-Post: <mailto:cygwin AT sources DOT redhat DOT com>
List-Help: <mailto:cygwin-help AT sources DOT redhat DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender: cygwin-owner AT sources DOT redhat DOT com
Delivered-To: mailing list cygwin AT sources DOT redhat DOT com
Message-Id: <5.1.0.14.2.20010626123753.025b18d0@pop3.cris.com>
X-Sender: rrschulz AT pop3 DOT cris DOT com
X-Mailer: QUALCOMM Windows Eudora Version 5.1
Date: Tue, 26 Jun 2001 12:43:46 -0700
To: Glen Coakley <gcoakley AT mqsoftware DOT com>, cygwin AT cygwin DOT com
From: Randall R Schulz <rrschulz AT cris DOT com>
Subject: RE: How to extract suffix from a filename?
In-Reply-To: <E1B42CFD544FD31193EE0000E87C5CE7E07EE1@mailserver2.mqsoftw
 are.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"; format=flowed

Glen,

That's a lot of overhead for what could be done entirely within a single shell:

On top of the shell that's interpreting these command lines, there is:

1 fork/exec for the sub-shell interpreting the backquote expression
1 fork/exec for basename
1 fork/exec for sed
1 pipe creation

Personally, I much prefer the shell-only approach I explained.

Randall Schulz
Mountain View, CA USA


At 12:02 2001-06-26, Glen Coakley wrote:

>This breaks on extensions that are not three characters, such as ".html".
>(Note: This includes the period.) The following will work for any length
>extension.
>
>     ext=`basename $filepath | sed -e 's/\(.*\\.).*/\1/g'`
>
>If you don't want the period:
>
>     ext=`basename $filepath | sed -e 's/\(.*\)\..*/\1/g'`
>
>________________________________
>Glen Coakley


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/