Use it when you are trying to see just what kind of gunk^Wdirectory paths %INC is filled up with, when you know you have installed a module but perl is failing to find one.
Actually, in such a case @INC is far more useful than %INC. %INC just gives you information where Perl actually has found a module it loaded - it doesn't give you much useful information if it couldn't find a module.
Other similar use is when trying to sort out the module paths, say to clean up the duplicates.
Again, in that case, @INC is far more useful than %INC.

In reply to Re^4: Use of %INC ? by JavaFan
in thread Use of %INC ? by vinoth.ree

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