instmodsh - listing perl modules

If I'm in the root directory, and I run instmodsh. Then choose option 'l' to list the modules, I get a list of perl modules.

However, if I'm in a different directory on the server and run instmodsh 'l', the list is different.

I'm curious as to why. I thought it was because .cpan and .cpanm was in the /root directory, but I copied those directory to a temp directory, and still didn't get the same list of modules.

Any insight on where the instmodsh is getting it's information, would be much appreciated. Thanks.
RamblSystems AdminAsked:
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I'm not familiar with instmodsh.  It should be getting the information from looking in the directories in @INC.
Looking at the code, it uses ExtUtils::Installed to get the information.

ExtUtils::Installed looks for .packlist files within @INC.  I'm not sure why it is looking for .packlist instead of just looking for *.pm files.

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