Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!watmath!clyde!caip!rutgers!husc6!wjh12!pixel!pixutl!chris
From: chris@pixutl.UUCP (chris)
Newsgroups: net.unix-wizards
Subject: Re: comm '! sort file1' '! sort file2'
Message-ID: <35@pixutl.UUCP>
Date: Thu, 2-Oct-86 10:24:42 EDT
Article-I.D.: pixutl.35
Posted: Thu Oct  2 10:24:42 1986
Date-Received: Sat, 4-Oct-86 11:21:03 EDT
References: <6846@elsie.UUCP> <830003@hpcnoe.UUCP>
Organization: xePIX Inc., Nashua, N.H.
Lines: 24
Summary: using fifo's to compare the output of 2 pipes

In article <830003@hpcnoe.UUCP>, jason@hpcnoe.UUCP (Jason Zions) writes:
> > / ado@elsie.UUCP (Arthur David Olson) /  8:20 am  Sep 22, 1986 /
> > I regularly want to run "comm" on a pair of unsorted files.
> > 	[ ... ]
> > All fine and dandy.  But then I got to thinking. . .that what I'd *really*
> > like to be able to do is use a command like
> > 
> > 	comm '! sort file1' '! sort file2'
> > 

It can be done easily on SYSV, using fifo's. I keep one around in my home
directory for this kind of things.  This is what you do, after creating
the fifo (mknod -p ~/fifo).

sort file1 > ~/fifo & sort file2 | comm - ~/fifo

				Chris

-- 

 Chris Bertin       :  (603) 881-8791 x218
 xePIX Inc.         :
 51 Lake St         :  {allegra|ihnp4|cbosgd|ima|genrad|amd|harvard}\
 Nashua, NH 03060   :     !wjh12!pixel!pixutl!chris