You want to figure out which is the source file being loaded for a given Perl module.
Throw the following code in a file named whichpm
on a sensible location:
#!/usr/bin/perl -w
$M = shift @ARGV;
die "Usage:\n whichpm Some::Module\n" unless defined $M;
eval("use $M; 1") or die "Can't locate module $M in \@INC\n";
$M =~ s|::|/|g;
print $INC{"$M.pm"}, "\n";
Make the file executable and then use, e.g., as:
$ whichpm Date::Manip
/Library/Perl/5.10.0/Date/Manip.pm
This recipe has also been packaged as a script on github: whichpm.