Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uunet!ns-mx!l_cae05.icaen.uiowa.edu
From: jlhaferman@l_cae05.icaen.uiowa.edu (Jeffrey Lawrence Haferman)
Newsgroups: comp.sources.wanted
Subject: 'hold' = unix csh script
Message-ID: <802@ns-mx.uiowa.edu>
Date: 6 Mar 90 19:29:28 GMT
Sender: news@ns-mx.uiowa.edu
Lines: 26


Does someone have the source for 'hold'?  I used to have it
where I used to work, and used it a lot.  I will probably
write my own it I can't find it.

'hold' works as follows:

      <some-command> file1 | hold file1

i.e. it performs the command on the contents of file1 and replaces
file1 with the results of the command.

Otherwise, one would need to
     <some-command> file1 > tmp1
     mv tmp1 file1

This is basically what 'hold' does, though if I remember, it
does does some checking to make sure <some-command> is succesful.

Thanks.


Jeff Haferman                            internet: jlhaferman@icaen.uiowa.edu
Department of Mechanical Engineering
University of Iowa
Iowa City IA  52240