In the last episode (Feb 08), Doug Poland said:
> Hi,
>
> Anyone know a command-line tool (or tools piped together) that
> could achieve the following results. Given...
>
> % cat fileA
> line1
> line2
> line3
>
> % cat fileB
> line2
> line4
> line5
>
> % cat fileC
> line1
> line4
> line6
> line7
>
> I would like to see all the lines in fileC that are not in fileA or
> fileB. In my case, I may be seraching against many files, i.e.,
> (A,B,C,etc...)
>
> So my desired result would be:
>
> line6
> line7
cat fileA fileB | sort | comm -13 - fileC
--
Dan Nelson
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