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  1. or download this
    Regex        Result
(.*)(\d*)    'I have 2 numbers: 53147', ''
...
(.*?)(\d*)    '', ''
(.*?)(\d+)    'I have ', '2'
(.*)(\d+)$    'I have 2 numbers: 5314', '7'
  2. or download this
    use strict;
my @re= qw|
...
  my $r=qr|$_|;
  print "$_\t'", join( "', '",$test=~/$r/),"'\n";
}