Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!umd5!purdue!decwrl!hplabs!sdcrdcf!trwrb!ries
From: ries@trwrb.UUCP (Marc Ries)
Newsgroups: comp.unix.questions
Subject: Re: stable sort in unix tools?
Message-ID: <6451@trwrb.UUCP>
Date: 18 May 88 16:30:13 GMT
References: <5456@umn-cs.cs.umn.edu>
Reply-To: ries@trwrb.dsd.trw.com.UUCP (Marc Ries)
Distribution: na
Organization: TRW Operations and Support Group
Lines: 46

>I'm stuck with a little sorting problem... not big enough to write my own
[...]
>(sorted by the number in the first column) that I would like to get
>sorted by the classification in the second column (A1, A2, A3...), but
>keeping the numbers in order within each classification.  The above list,
>for instance, would end up:
>
>1644    A1      blah blah blah
>1718    A1      still more
>1237    A2      text comments
>1357    A3      more text
>
>I need a stable sort, in other words, and the standard (4.3 bsd) UNIX sort
>doesn't seem to provide that.  Is there a way around this using UNIX tools?
>Is there another way?  Any help (including programs, if necessary) would be
>appreciated.
>
  
   In the past, "sort +1 -2 +0 -1 data_file" seemed to work ok 8-).























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		Marc A. ries@trwrb.TRW.COM

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