search for a string spread in multiple line


 
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# 1  
Old 10-22-2008
Bug search for a string spread in multiple line

Hi,

I have to look for the full string below in a large file(>5GB) , but that string may be spread in two lines.

string :-- "f8f8 f5f0 f0f0 f1f7 f4f7 f7c1"

By grep "f8f8 f5f0 f0f0 f1f7 f4f7 f7c1" file | tail -1
, I am getting incorrect result because there is a line after this also which contains same string in two lines which does not get caught above ..

Please help..

Finder..
# 2  
Old 10-22-2008
yeah , I just figured out the way ...

Using sed, I am able to do it ...

sed -n '
/f8f8/{
N
s/f8f8 *\n*f5f0 *\n*f0f0 *\n*f1f7 *\n*f4f6 *\n*f7c1//
p
}' file | tail -1


Thx..

Last edited by finder255; 10-22-2008 at 05:31 PM..
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