[linux environment]
>遇到问题 LWP not available
>解决方法
cpan > o conf init
cpan > o conf urllist shift
cpan > o conf urllist push ftp://ftp-mirror.internap.com/pub/CPAN/ (ftp://www.perl87.cn/CPAN/ for china)
cpan > o conf urllist
cpan > o conf commit (永久保存以上设置)
cpan > install LWP::UserAgent (use LWP to download)
cpan > reload cpan (update CPAN module)
cpan > install Bundle::CPAN