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My Perl question is I need to create a regular expression in Perl to find if anything except a positive integer was entered.
No letters or characters except a positive integer.
For example the regular expression will check
My attempt is not validating like I want it to:
if($DataEntry =~ !/d.*+)
print "bad entry";
print "good entry";
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or How to display code and escape characters
are good places to start.