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Path: utzoo!watmath!clyde!burl!ulysses!allegra!bellcore!decvax!mulga!munnari!basser!physiol!daved
From: daved@physiol.oz (A/Prof. David F. Davey)
Newsgroups: net.unix-wizards
Subject: Re: sort problems
Message-ID: <124@physiol.oz>
Date: Wed, 23-Jan-85 19:56:42 EST
Article-I.D.: physiol.124
Posted: Wed Jan 23 19:56:42 1985
Date-Received: Wed, 30-Jan-85 04:45:41 EST
References: <2040@pegasus.UUCP>
Organization: Physiology, Uni of Sydney, Australia
Lines: 27


    Okay you sort experts why do these two sorts not work ?
    
    sort << !
     Abe
    Aba
    !
You must say skip leading blanks on the first column (+0 to right)
sort +0b <<
 Abe
Aba
!

    
    sort << !
    Abe
    $Aba
    !
The shell variable $Aba is most likely undefined. "set -x" before the sort
of the here document would show a blank line input in this case. You can
also see what is happening with:

Aba="Aba from shell variable"
sort << !
Abe
$Aba
!