(echo o conf urllist unshift http://mirrors.163.com/cpan/ http://mirrors.sohu.com/CPAN/ http://www.perl.com/CPAN/; echo o conf commit) | perl -MCPAN -e shell
(echo o conf urllist unshift http://mirrors.163.com/cpan/ http://mirrors.sohu.com/CPAN/ http://www.perl.com/CPAN/; echo o conf commit) | perl -MCPAN -e shell