/root/perl5/lib/perl5/Symbol/Global/Name.pm is not the right place for a Perl module to be installed. Nothing under /root is accessible to a process running as a normal user. It should be installed under one of the directories on the @INC list. Try re-installing it.
If you want to print the @INC list in a human-readable way, issue the command:
Code:
perl -e 'print join("\n",@INC),"\n"'
To tes whether it is installed correctly, do:
Code:
perl -e 'use Symbol::Global::Name'