a slightly nicer fusion of your two methods is the following: 
PROMPT: {
    chomp($a = <STDIN>);
    $a =~ tr/0-9.//cd;

    unless (length($a))
    {
        print "Please enter a number\n";
        redo PROMPT;
    }
}

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In reply to RE: RE: Re: Minor query by mdillon
in thread Minor querry!! by vnpandey

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