filename_list is from Term::ReadLine::readline.pm:
For use in passing to completion_matches(), returns a list of filenames that begin with the given pattern. The user of this package can set $rl_completion_function to 'rl_filename_list' to restore the default of filename matching if they'd changed it earlier, either directly or via &rl_basic_commands.
To install Term::ReadLine::Perl5::Demo::Cmd, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Term::ReadLine::Perl5::Demo::Cmd
CPAN shell
perl -MCPAN -e shell install Term::ReadLine::Perl5::Demo::Cmd
For more information on module installation, please visit the detailed CPAN module installation guide.