From owner-freebsd-questions  Wed Feb  9  1:10:48 2000
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Date: Tue, 08 Feb 2000 19:14:53 -0800
From: Ludwig Pummer <ludwigp@bigfoot.com>
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To: darryl@osborne-ind.com
Cc: freebsd-questions@freebsd.org
Subject: Re: OFF TOPIC - Shell Script Question
References: <001101bf7273$e44dc250$070101c0@ruraltel.net>
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Darryl Hoar wrote:
> 
> Greetings,
> I have a directory with a ton of files in it.  I need to move some of
> them to another
> directory.  Here's what I'm thinking:
> 
> ls -tl | grep '1999' | awk '{print "mv " $9 " /home/darryl/test"}'
> 
> but it does not 'execute' the mv command.  How do I get this cooking ?
> 
> BTW, I don't plan on doing this a bunch, so I would preferr Not to
> install, learn
> perl.  Instead, use the shell.

If mv would let you invert the order of its arguments, an ls | awk |
xargs | mv pipe would take care of this, but it doesn't so (I did this
from tcsh):

If the filenames actually have 1999 in them:
( echo '#\!/bin/sh' ; ls -tl | awk '/1999/ {print "mv " $9 "
/home/darryl/test"}' ) > mvfile
sh mvfile

If the file's mtime is 199 and you don't care about what's in the
filename:
( echo '#\!/bin/sh' ; ls -Ttl | awk '($9 == 1999) {print "mv " $10 "
new"}' ) > mvfile
sh mvfile

Note that these will fail for files whose filenames contain spaces.

--Ludwig Pummer <ludwigp@bigfoot.com> <lspummer@ucdavis.edu>


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