Comparing two lists [SOLVED (at least it looks like that)]

Rolf Nielsen listreader at
Sat May 7 11:02:21 UTC 2011

2011-05-07 05:16, b. f. skrev:
>> 2011-05-07 02:09, Rolf Nielsen skrev:
>>> Hello all,
>>> I have two text files, quite extensive ones. They have some lines in
>>> common and some lines are unique to one of the files. The lines that do
>>> exist in both files are not necessarily in the same location. Now I need
>>> to compare the files and output a list of lines that exist in both
>>> files. Is there a simple way to do this? diff? awk? sed? cmp? Or a
>>> combination of two or more of them?
> ...
>> sort file1 file2 | uniq -d
> If the lines aren't repeated in only one file...

They aren't (see my reply to Yuri Pankov). :)

> For future reference, comm(1) exists to handle problems like this,
> although (of course) TIMTOWTDI.
> b.

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