Script to identify the line number containing a particular "string"

[kk2202]

Hi,

I have a log file, where i am required to identify the line number, where a particular string/line appears in the log file.

And then copy 200 lines above that line number to a new file.

Can someone provide pointers on how to write this script or what command to be used ?

Any help would be highly appreciated.


Thanks in advnace,

[RobinVossen]

#!/usr/bin/perl
use warnings;
use strict;

open LOG, "<logfile.log";
while(<LOG>)
{  
  if ( $_ =~ m/LOOKING FOR/ )
  {
     print "yeyFOUND!";
  }
}
close LOG;

use perl for this
That is a little sample you'll just have to add the Copy part =)

[xwulfgar]

Look into wc -l, awk and cut.

xwulfgar.