This is the simplest example of how to use it, to just provide program identification informaion and usage help.. you probably even want to get rid of the help-opts option
To install Getopt::Function, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Getopt::Function
CPAN shell
perl -MCPAN -e shell install Getopt::Function
For more information on module installation, please visit the detailed CPAN module installation guide.