[Gllug] problems with comm

[Steve Cobrin]

I'm scratching my head here. Can anybody help?

I have two files containing lists of sorted numbers one per line. I want to 
find out what numbers are defined in one file rather than the other. I'm 
using "comm", but it *seems* to be giving me the wrong result, in fact it 
shouldn't return anything, but it does!

Can anybody help? 
[I'm more interested in what I'm misinterpreting from comm, as opposed to a 
solution in Perl.]

e.g.

% comm -23 access.passgid access.grpgid
12
13
14
15
25
28
31
44
51
54
56
60
61
62
100
666
65534
% more access.passgid access.grpgid
::::::::::::::
access.passgid
::::::::::::::
0
1
2
3
6
7
12
13
14
15
25
28
31
44
51
54
56
60
61
62
100
666
65534
::::::::::::::
access.grpgid
::::::::::::::
0
1
2
3
5
6
7
8
9
10
12
13
14
15
16
17
25
28
30
31
32
33
40
41
42
43
44
51
54
55
56
57
59
60
61
62
100
666
65534

I'm using SuSE Linux 7.3, LC_COLLATE=POSIX, and my version of comm comes from 
GNU textutils-2.0.10-106


	-- Steve

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