To test if the string is exactly two digits, anchor beginning and end and use a quantifier, 

if ($my_dat !~ /^\d{2}$/) {
    # some code here
}

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The !~ op negates the match so that the bracketed code is executed if $my_dat is different from two digits.

After Compline,
Zaxo

In reply to Re: Question on pattern matching by Zaxo
in thread Question on pattern matching by Joe_Cullity

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