You're reading the file twice

while(<FILE>) {        ## assign $_ to readline *FILE
my $message = <FILE>;  ## assign my $message to readline *FILE
[download]

Which is one problem, and another is you're using the regex anchor \A which matches the beginning of a string. So you're matching berta226: to the beginning of the string, which will also make the regex fail. If you change your code to something like this you should get the desired output (updated - dropped extraneous semi-colon on second line. update 2: also fixed a further 2 mistakes as noted below .oO(note to self - don't post in a hurry shortly before leaving ... ))

while(my $message = <FILE>) {
  print "$1: $2<br/>"
    if $message =~ /^(Alberta226: )([a-zA-Z, 0-9]+)/; # I added the +
}
[download]

See. perlsyn and perlre for more info.

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