How to check installed perl modules on a cPanel server ?

Login to your Server via SSH with root login .

Run below command

instmodsh

root@ashishkale [~]# instmodsh
Available commands are:
   l            - List all installed modules
   m <module>   - Select a module
   q            - Quit the program
cmd? l
Installed modules are:
   CPAN
   Compress::Raw::Bzip2
   Compress::Raw::Zlib
   Crypt::PasswdMD5
   DBI
   Digest::SHA1
   Encode::Locale
   Expect
   ExtUtils::MakeMaker
   File::Listing
   Filesys::Df
   GnuPG
   HTTP::Cookies
   HTTP::Daemon
   HTTP::Date
   HTTP::Message
   HTTP::Negotiate
   IO::Compress
   IO::HTML
   IO::Tty
   LWP
   LWP::MediaTypes
   Module::Build
   Module::Metadata
   Net::HTTP
   Perl
   Perl::OSType
   Regexp::Assemble
   Test::Deep
   Test::NoWarnings
   Test::Tester
   URI
   WWW::RobotRules
   local::lib
   version
cmd?