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From: chris@umcp-cs.UUCP (Chris Torek)
Newsgroups: net.unix-wizards
Subject: Re: comm '! sort file1' '! sort file2'
Message-ID: <3724@umcp-cs.UUCP>
Date: Mon, 6-Oct-86 23:23:10 EDT
Article-I.D.: umcp-cs.3724
Posted: Mon Oct  6 23:23:10 1986
Date-Received: Wed, 8-Oct-86 07:07:50 EDT
References: <6846@elsie.UUCP> <830003@hpcnoe.UUCP> <35@pixutl.UUCP>
Reply-To: chris@umcp-cs.UUCP (Chris Torek)
Organization: University of Maryland, Dept. of Computer Sci.
Lines: 25

>/ 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'
>> 

In article <35@pixutl.UUCP> chris@pixutl.UUCP (chris) writes:
>It can be done easily on SYSV, using fifo's.

Unfortunately, one must be root to create a fifo, no?

It should (but is not presently) possible to do this in 4.3BSD
using AF_UNIX sockets.  The socket `file' that is created should
be usable by any ordinary process.  An open() could be translated
into a socket(),connect() pair, and the process would then be
talking to the creator of the socket.

Perhaps in 4.4...
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 1516)
UUCP:	seismo!umcp-cs!chris
CSNet:	chris@umcp-cs		ARPA:	chris@mimsy.umd.edu