use lib q(/path/to/your/lib); use Date::Calc; #### Karls-Mac-mini:~ karl$ perl -e 'print join(qq(\n), @INC);' /sw/lib/perl5 /sw/lib/perl5/darwin /Library/Perl/5.12/darwin-thread-multi-2level /Library/Perl/5.12 # and many more... #### Karls-Mac-mini:~ karl$ ls -hlrt /Library/Perl/5.12 total 216 -r--r--r-- 1 root wheel 31K 26 Feb 2011 PPI.pm -rw-r--r-- 1 root wheel 33B 11 Okt 2011 AppendToPath -r--r--r-- 1 root wheel 543B 4 Apr 2012 oo.pm -r--r--r-- 1 root wheel 20K 18 Jun 13:32 Carp.pm -r--r--r-- 1 root wheel 8,9K 9 Sep 03:15 strictures.pm -r--r--r-- 1 root wheel 946B 11 Sep 20:24 ok.pm -r--r--r-- 1 root wheel 23K 23 Okt 17:27 Moo.pm drwxr-xr-x 3 root wheel 102B 27 Okt 13:46 B drwxr-xr-x 7 root wheel 238B 27 Okt 13:48 DateTime # and many more...