需要 openSUSE Tumbleweed ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/devel:languages:perl:CPAN-W/openSUSE_Tumbleweed/devel:languages:perl:CPAN-W.repo
zypper refresh
zypper install perl-WWW-RobotRules
需要 15.5 ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/devel:languages:perl:CPAN-W/15.5/devel:languages:perl:CPAN-W.repo
zypper refresh
zypper install perl-WWW-RobotRules
需要 15.4 ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/devel:languages:perl:CPAN-W/15.4/devel:languages:perl:CPAN-W.repo
zypper refresh
zypper install perl-WWW-RobotRules