It's always a good idea to check the results of file tests. 

$ perl -e '$age = -M "foo.txt" or die "problem: $!"; print "Age: $age\n"'
Age: 6.13123842592593

$ perl -e '$age = -M "foobar.txt" or die "problem: $!"; print "Age: $age\n"'
problem: No such file or directory at -e line 1.

In reply to Re: How can I get -M to work properly? by converter
in thread How can I get -M to work properly? by kleinbiker7

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