What modules are installed ?

cajun has asked for the wisdom of the Perl Monks concerning the following question:

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Re: What modules are installed ? by Fastolfe (Vicar) on Sep 19, 2000 at 22:44 UTC
The CPAN module has all sorts of code to do stuff like this. The man page has some very interesting examples, including one that I think you can modify to suit your needs: `# list all modules on my disk that have newer versions on CPAN for $mod (CPAN::Shell->expand("Module","/./")) { next unless $mod->inst_file; next if $mod->uptodate; printf "Module %s is installed as %s, could be updated to %s\n", $mod->id, $mod->inst_version, $mod->cpan_version; }` [download] `$mod->inst_version` is set to the installed version of your module and `$mod->cpan_version` is the latest available version. The `expand` function as done above will pull everything from CPAN.	[reply] [d/l] [select]
Re: What modules are installed ? by reptile (Monk) on Sep 19, 2000 at 22:55 UTC
Try `perldoc perllocal`. It'll show you all the modules you have installed and a bunch of extended information about them (like where each module is installed, and its version), but it doesn't include the standard library modules. The .pod file, `perllocal.pod` is where this man page comes from and you could probably parse it yourself if you want. It's somewhere in your lib directory (on 5.00502 i found it in /usr/lib/perl5/5.00502/i386-linux-thread). `local $_ = "0A72656B636148206C72655020726568746F6E41207473754A"; while(s/..$//) { print chr(hex($&)) }` [download]	[reply] [d/l]
RE: Re: What modules are installed ? by tye (Sage) on Sep 19, 2000 at 23:08 UTC
Note that not all ways of installing modules update this file. Last time I checked, it was the generated Makefile that included the code to update that file. If you use the MakeMaker tools for installing modules without a Makefile, then the `perllocal.pod` won't be updated (and this was reported as a bug so it might be fixed now). I'm not sure whether PPM, etc. update that file. - tye (but my friends call me "Tye")	[reply] [d/l]
RE (tilly) 2: What modules are installed ? by tilly (Archbishop) on Sep 19, 2000 at 23:09 UTC
Actually this method only shows some modules that were installed properly, missed the ones in the core, and is flaky in a few other ways as well. (Anything people put in by hand won't be there.) I would seriously not trust it.	[reply]
Re: What modules are installed ? by japhy (Canon) on Sep 19, 2000 at 22:27 UTC
Tom Christiansen wrote a program in his pmtools bundle. You can find it somewhere on the perl.com web site. I wrote my own utility as well, at my web site. It's in the (aptly named) "Programs" section. `$_="goto+F.print+chop;\n=yhpaj";F1:eval`	[reply]
Re: What modules are installed ? by cajun (Chaplain) on Sep 20, 2000 at 07:29 UTC
Thanks to all for the suggestions. I will try all of them. So far I've only had time to try Fastolfe's suggestion. It looks like it will tell me what I was curious about.	[reply]
Re: What modules are installed ? by Adam (Vicar) on Sep 19, 2000 at 22:24 UTC
I believe you can use CPAN.pm to do that, but I don't remember the details.	[reply]
RE: What modules are installed ? by little (Curate) on Sep 19, 2000 at 23:36 UTC
what about simply "grep"ing all *.pm files on your system? In this way you could aslo check, if they are on the right path. :-)	[reply]


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