Comparing two lists

[Rolf Nielsen]

2011-05-07 02:33, Polytropon skrev:
> On Sat, 07 May 2011 02:09:26 +0200, Rolf Nielsen<listreader at lazlarlyricon.com>  wrote:
>> 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?
>
> I would suggest using a combination of sort, uniq and diff.
> Those are base system tools.
>
>

Ah. I didn't know about uniq. That sure helped. :)
Thanks.