Re: use diff to get same and different rows
Peter Havens <peter.hav...@gmail.com>
On Nov 18, 4:03 pm, "ela" <e...@yantai.org> wrote:
> after man diff, it seems that I cannot generate the 2 output files simply
> from files a & b?
I'm not sure I understand what you mean, but if you want to do a
comparison without regard to where lines appear in each file (which
seems to be what you want), you could probably use the `comm` command.
For example, to get lines that are common to both files, you might try
something like:
bash$ comm -12 <(sort a) <(sort b)
1 1 1
...or to get lines that are not common to both files:
bash$ comm -13 <(sort a) <(sort b); comm -23 <(sort a) <(sortb)
1 3 9
2 2
1 2 3
I hope that helps.
-- Pete
