There are a few shortcuts that could make this smaller, but the code below is one way to comment lines that matched a list of words.
However, you will probably need to dial in the regex to better meet your needs.
#!/usr/bin/perl
use strict;
use warnings;
my @file_a_array;
my $newfile;
my $file_a = <path to word file>;
my $file_b = <path to lines of text>;
open (FILE_A, "$file_a") or die "couldn't open the file!";
while (my $line = <FILE_A>) {
chomp ($line);
push (@file_a_array, $line);
}
close (FILE_A);
open (FILE_B, "$file_b") or die "couldn't open the file!";
while (my $line = <FILE_B>) {
chomp ($line);
foreach my $word (@file_a_array) {
if ($line =~ /$word/) {
$newfile = $newfile . "# ";
}
}
$newfile = $newfile . $line . "\n";
}
close (FILE_B);
open (FILE_B, ">$file_b") or die "couldn't open the file!";
print FILE_B $newfile;
close (FILE_B);
print "end\n";
Hope this helps!
Jamie