I think you want "ord", not chr, right? You want the ASCII value of a character? ... 
my $char_num = ord( $character );

if ( $char_num >= 55 && $char_num <= 90 ) {

[download]
... or 
if ( $character =~ /[0-9a-z]/ ) {
 ...
}

[download]

In reply to Re: Matching alphanumeric characters from urandom by RazorbladeBidet
in thread Matching alphanumeric characters from urandom by Garanixx

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