So i moved to the Ubuntu operating system recently to see how it was like and i came across the syslog which proves to be quite interesting. So i decided to create a script that will run through the syslog and search for key terms with a regex and output this to another text file. this is what i got so far

 

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

my @array=();
open(my $keyword,'<', "keyword.txt") or die "Couldn't open file file.t
+xt, $!";

open(my $sys,'<', "syslog") or die "Couldn't open file file.txt, $!";

#open($keyword,'>' "keyword.txt") || die "Couldn't open file file.txt,
+ $!";

#open my $keyword, '>' , $file_location3 or die "can't open Keywords:"
+ $!;  # gives keywords.txt the file handle keyword and shows 
                                                                      
+ #error message if it fails to open 
#open my $sys, '>' , $file_location2 or die $!; # same as above 

open(my $fh, '>', 'output.txt');

#my $file_location2 = "syslog";

#my $file_location3 = "keyword.txt";


#arraylisy goes here 


my $Keyword_or = join '|' , map {chomp;qr/\Q$_\E/} <$keyword>; # lists
+ all lines in indicated file and joins the list in 1 string
                                                               #regex 
+here removes new line from each line and uses literal regex
                                                               #which 
+matches even those words with dots 
my $regex = qr|\b($Keyword_or)\b|; # this regex will match 
                                   #all the keywords stored in keyword
+s txt file
#@array = $Keyword_or;

foreach $regex(@array)
{

    #while (/regex/g) 
    #{ 
      #print $NEW "$.: $1";
      print $fh $regex;

     #} 
     #return $keyword;
     #return $sys; 
     #return $NEW; 
     #print $fh $NEW;
     close $fh;

}
[download]

While this code does compile with no errors it doesn't actually output anything and i also realized that my array is also empty. As im still new to perl Can anyone tell me how i would push the results of the regex to an arraylist and output it ?

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