[prog] Finding your Perl modules

[Jacinta Richardson]

Dan wrote:
> Is there an "official" way to find all the Perl modules installed on
> your system? I've done this and it works pretty well:
>   locate '*.pm'
> but I was wondering if there's some built-in mechanism to do it.


If you want to find out what Perl modules came along with perl you can write

	perldoc perlmodlib      (perl module library)

If you want to find out what Perl modules have been installed via the CPAN 
module or perl Makefile.PL/make/make test/make install then you can write

	perldoc perllocal	(local libraries)

(incidently this may be what the webmin script uses mentioned by Marize).


If you want to find out which Perl modules have been installed via an operating 
packaging system you have to ask it.  This applies to all *nix machines 
including BSDs and probably OSX.  *nix packaging systems do not update the 
perllocal information.

In addition, Perl modules installed by non-root users may not be identified by 
perldoc perllocal even if installed via the CPAN module or perl 
Makefile.PL/make/make test/make install.  This is because (typically) only root 
can update the perllocal information.

If you're using ActiveState Perl on MS Windows and you only ever add modules via 
ActiveState's PPM manager then I believe that both ActiveState and perldoc 
perllocal will let you know which modules are available.

I hope that helps,

	Jacinta

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