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From: jln@casbah.acns.nwu.edu (John Norstad)
Newsgroups: comp.sys.mac.misc
Subject: Re: System 7.0 vs. NeXT Step
Message-ID: <2898@casbah.acns.nwu.edu>
Date: 24 Jan 91 19:07:58 GMT
Sender: news@casbah.acns.nwu.edu
Organization: Northwestern University
Lines: 15
References:<11468@helios.TAMU.EDU> <1991Jan23.204448.23778@unx2.ucc.okstate.edu> <NK5W6CQ@cs.swarthmore.edu> <5646@idunno.Princeton.EDU>

In article <5646@idunno.Princeton.EDU> bskendig@phoenix.Princeton.EDU 
(Brian Kendig) writes:
> Piping is nice when you have small programs whose only function is to
> manipulate the data piped into them, and pipe out changed data, such
> as grep and colrm and sort.  There are no programs like these existing
> for the Macintosh, as far as I know.

Apple's MPW (Macintosh Programmer's Workshop) supports pipes and filters.  
It's almost identical to UNIX.  Filters corresonding to grep, sort, etc. 
are included.

John Norstad
Academic Computing and Network Services
Northwestern University
jln@casbah.acns.nwu.edu