How can I extract differences between 2 folders ?

[Gary Gatten]

I could write something in perl, but don't know if anything exists or not.

----- Original Message -----
From: owner-freebsd-questions at freebsd.org <owner-freebsd-questions at freebsd.org>
To: freebsd-questions at freebsd.org <freebsd-questions at freebsd.org>
Sent: Tue May 05 13:35:22 2009
Subject: Re: How can I extract differences between 2 folders ?

First I am sorry writing folders instead of files.
as far as I see diff command compares differences line by line between 2 
files

That's to say,
File a
orange
blue
yellow

File b
yellow
blue
orange

diff --suppress-common-lines -w -y a b
orange                                                        <
blue                                                          <
                                                              > blue
                                                              > orange


as above you see,  A and B files contains the same strings but their's lines 
are different
I wish diff or another command not to display same values which are in 
different lines.


> First of all I suppose you're talking about 2 files, not folders.
> In which case the command you're using isn't looking so bad since it
> shows the differences between file "a" and file "b":
>
> > diff --suppress-common-lines -w -y a b
> abcde                                                         | xyasz
>
> But since you do not seem to be happy with the output - what should it
> look like?
>
> Armin
>
> On Tue 05 May 2009, Yavuz Maşlak wrote:
>
>> I have two folders which contains some expressions in everyline as
>> following;
>> File A:
>> abcde
>> 12345
>> etc.
>>
>> File B:
>> xyzas
>> 12345
>> etc
>>
>> As above some strings are same and some strings are different.
>> There are several differents between these two files.
>>
>> When I run diff command "diff --suppress-common-lines -y -w file1 file2 >
>> fileresult"   like I couldn't result right.
>> How can I extract differences between 2 folders ?
>>
>> Which command do I need to use ?
>
> -- 
> Armin Pirkovitsch
> a.pirko at inode.at
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