Hi monks, I have written a perl script for reading an input file and checking if there are certain keywords present in that file and remove those lines from the file. 

#!/usr/bin/perl

use strict;
use warnings;

open(my $in, '<', 'out2.txt')
    or die "Cannot open input.txt: $!";

open(my $out, '>', 'out2_mod.sp')
    or die "Cannot open output.txt: $!";

while (<$in>) {
  print $out $_ unless /XXXXX/;
}

close($in);
close($out);

[download]
How do I modify the perl script to remove the one line above and below the line I am removing currently,as well as remove the line containing XXXXX.

To rephrase. my input file will have 

PPPPP
XXXXX is my name
YYYYY
KKKKK
UUUUU
BBBBB
CCCCCC
XXXXX is what I play
KKKKK
NNNNN

[download]
I want to find the lines were XXXXX exists and remove the line above and below that line and also line containing XXXXX. So my ouptut should look like 
KKKKK
UUUUU
BBBBB
NNNNN

[download]

In reply to how to check for a word in a file and if found remove that line, the above line and the below line from the file. by Ganesh Bharadwaj1

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