in reply to Validation of UserInput is a positive Integer or not?
I think what you meant to write was
if ($days =~ /^\s*[1-9][0-9]*\s*$/)The way you wrote it, it would only match a value of $days equal to "1-90-9" plus or minus leading/trailing spaces and the last nine.
Much better is the approach taken by toolic, ww, and Apero.
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