Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!helios!bcm!convex!uunet!bria!mike
Newsgroups: comp.unix.questions
Subject: Re: Bourne to read?
Message-ID: <492@bria>
Date: 1 Mar 91 07:49:31 GMT
References: <1991Feb28.160948.24987@hoss.unl.edu>
Reply-To: uunet!bria!mike
Distribution: na
Organization: MGI Group International, Los Angeles, CA
Lines: 19
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In an article, sardion.unl.edu!mosemann (Russell Mosemann) writes:
>
>   In the Bourne shell, why does this not work
>
>      echo words | read W
>
>   but this does (if I put the words in the file)
>
>      read W < file

The read is in a different instance of the shell.  The shell forks the
read, and proceeds to create/modify the environment variable.  When the
child dies, so does its environment.

-- 
Michael Stefanik, MGI Inc., Los Angeles| Opinions stated are not even my own.
Title of the week: Systems Engineer    | UUCP: ...!uunet!bria!mike
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