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Displaying difference of 2 files

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# 1  
Old 06-25-2010
Displaying difference of 2 files
Hi All,

Got this 2 file namely a.txt and b.txt, i want to know how to extract the difference between the two files, the output will be written to a file.

e.g.
>>a.txt<<
Code:
Nokia 1100
Nokia 1200
Nokia 1300
Nokia 1400
Nokia 1500
Nokia 1600
Nokia 1700
Nokia 1701
Nokia 1702
Sagem 1100
Nokia 1201

>>b.txt \<<
Code:
Nokia 1100
Sagem 1100
Nokia 1700
Nokia 1200
Nokia 1300
Nokia 1400
Nokia 1500
Nokia 1201
Nokia 1202
Nokia 1203
Nokia 1701

Moderator's Comments:
Mod Comment Use code tags please, ty.
Last edited by zaxxon; 06-25-2010 at 06:04 AM.. Reason: code tags
# 2  
Old 06-25-2010
Code:
sort a.txt > a1.txt
sort b.txt > b1.txt

diff a1.txt b1.txt

This User Gave Thanks to a_programmer For This Post:
shtobias
# 3  
Old 06-25-2010
Hi,

Thanks.

So i need to sort it first, so that i have accurate result. I will test it later. Smilie
# 4  
Old 06-25-2010
u dnt need to sort, the diff command will run without that also.
Code:
 diff file 1 file 2

it will show the diffrence between 2 files on ur machine..
Code:
diff file 1 file 2 >> out.file

nw the difference will be stored in out.file.
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