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Home/ Questions/Q 3426976
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Editorial Team
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Editorial Team
Asked: May 18, 20262026-05-18T06:46:50+00:00 2026-05-18T06:46:50+00:00

Im trying to search through a text file and find the valid email addresses.

  • 0

Im trying to search through a text file and find the valid email addresses. Im doing something like this:

    #!/usr/bin/perl -w

my $infile = 'emails.txt';

    open IN, "< $infile" or die "Can't open $infile : $!";

    while( <IN> )
    { 
        if ($infile =~ /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,6}$/) 
        { 
            print "Valid \n"; 
        } 
    }

    close IN;

But it doesnt do anything, any help?

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  1. Editorial Team
    Editorial Team
    2026-05-18T06:46:51+00:00Added an answer on May 18, 2026 at 6:46 am

    You match the email address regexp against the name of the file. And anyway you should not use regex to validate email address – use Email::Valid

    use strict;
    
    use Email::Valid;
    
    my $infile = 'emails.txt';
    
    open my $in, "< $infile" or die "Can't open $infile : $!";
    
    while(my $line = <$in> ) {
    
        chomp $line;
    
        if (Email::Valid->address($line)) {
    
            print "Valid \n";
    
        }
    
    
    }
    
    close $in;
    
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