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From: Jim Meyering
Subject: Re: BUG REPORT
Date: Thu, 12 Jul 2001 12:59:49 +0200
User-agent: Gnus/5.090004 (Oort Gnus v0.04) Emacs/21.0.104

"Stephan Menezes" <address@hidden> wrote:
| i have two simple text  files FILE1    and    FILE2    with the following
| contents
| ccode/server.c
| ccode/server1.c
| ccode/server1.c
| now when i  COMM  it
| $ comm   -12  FILE1  FILE2
| it gives me no output .   but when i ran the command COMM on a HP-UX
| machine with the same two files  FILE1 and FILE2 , it gave me the correct
| output. (i.e ccode/server1.c )!! which is correct.

Next time, please report which version of comm you're using.
Run this: comm --version

>From your report, I can only guess which lines belong in which file,
but if I do it as follows,

  $ echo ccode/server1.c > f1
  $ (echo ccode/server.c; echo ccode/server1.c) > f2

I do get the expected output:

  $ comm -12 f1 f2

So I can't reproduce the problem.
I'm using comm from this package:

Maybe you're using a different version of comm,
or (more likely) maybe you have trailing blanks that make it so
the server1.c lines aren't really the same.

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