To install , copy and paste the appropriate command in to your terminal.
cpanm
cpanm ILYAZ/modules/pari/pari-2.1.7.tgz
CPAN shell
perl -MCPAN -e shell
install ILYAZ/modules/pari/pari-2.1.7.tgz
For more information on module installation, please visit the detailed CPAN module installation guide.