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Find difference between 2 files

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# 1  
Old 03-25-2011
Find difference between 2 files
I have 2 files as follows.
file1.txt
Code:
<cell>123</cell>
<cell>345</cell>


file2.txt

Code:
<cell>123</cell>
<cell>456</cell>

out out should be

output.txt
Code:
<cell>456></cell>

How do we achieve this> The difference betwenn the two files should be wirtten to the output file..

Thanks in advance.
Kantharaj.
Moderator's Comments:
Mod Comment
Please use code tags when posting data and code samples!
Last edited by vgersh99; 03-25-2011 at 12:21 PM.. Reason: code tags, please!
# 2  
Old 03-25-2011
Code:
comm -13 file1.txt file2.txt

# 3  
Old 04-07-2011
Belt and braces:
Code:
sort <file1.txt >/tmp/file1.sor
sort <file2.txt >/tmp/file2.sor
comm -13 file1.sor file2.sor

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