Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!bcm!convex!tchrist
From: tchrist@convex.COM (Tom Christiansen)
Newsgroups: comp.unix.shell
Subject: Re: Retaining file permissions
Keywords: chmod, sed, awk
Message-ID: <1991Feb22.021821.29286@convex.com>
Date: 22 Feb 91 02:18:21 GMT
References: <6039@ptsfa.PacBell.COM>
Sender: tchrist@convex.com (Tom Christiansen)
Reply-To: tchrist@convex.COM (Tom Christiansen)
Organization: CONVEX Software Development, Richardson, TX
Lines: 27

From the keyboard of jlwestm@PacBell.COM (Jeff Westman):
:I have a script that replaces a string with another.  The file is executable, 
:but when I run it through 'sed' I loose the executable attribute -- and I
:don't want to change my umask.
:
:Here's basically what I have:
:
:        #  Replace one occurance with another
         #  Replace one occurance with occurrence :-)
:        
:        print "Enter a \"from\" string:  \c" ;  read FROM
:        print "Enter a \"to\"   string:  \c" ;  read TO
:        
:        sed s/$FROM/$TO/gp $i > xyzyx
:        mv -f xyzyx $i

% perl -p -i -e "s/$FROM/$TO/g" xyzyx

Did you know that your set duplicates the lines matching $FROM? 
I assume this to be an error.

--tom
-- 
"UNIX was not designed to stop you from doing stupid things, because
 that would also stop you from doing clever things." -- Doug Gwyn

 Tom Christiansen                tchrist@convex.com      convex!tchrist


Brought to you by Super Global Mega Corp .com