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Shell Programming and Scripting

Search--Compare--Redirect

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# 1  
Old 09-27-2006
Search--Compare--Redirect
Hai Guru's,

I have 3 files.A,B,C

The file A,B is very huge.What i need to do is...I just get each record from file A and compare with File B...if the record presents...redirect the record to File C..otherwise not needed...

Kindly give me ur valuable suggestions to resolve the above problem....

Satheesh.Rajan
# 2  
Old 09-27-2006
Code:
man comm

Example (using bash, which supports process redirection)

Code:
$ cat > file_1
one
two
three
four
$ cat > file_2
three
four
five
six
$ comm -12 <( sort file_1 ) <( sort file_2 ) > file_3
$ cat file_3
four
three

Cheers
ZB
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