1)配置文件： /usr/lib/perl5/5.8.8/CPAN/Config.pm
如果第一次运行cpan命令
cpan提示进行交互的进行配置
当然我们根据自己的需要也可以手动的编辑此文件
贴一下自己的配置：
# This is CPAN.pm’s systemwide configuration file. This file provides
# defaults for users, and the values can be changed in a per-user
# configuration file. The user-config file is being looked for as
# ~/.cpan/CPAN/MyConfig.pm.
$CPAN::Config = {
‘build_cache’ => q[10],
‘build_dir’ => q[/root/.cpan/build],
‘cache_metadata’ => q[1],
‘cpan_home’ => q[/root/.cpan],
‘dontload_hash’ => { },
‘ftp’ => q[/usr/kerberos/bin/ftp],
‘ftp_proxy’ => q[],
‘getcwd’ => q[cwd],
‘gpg’ => q[/usr/bin/gpg],
‘gzip’ => q[/usr/bin/gzip],
‘histfile’ => q[/root/.cpan/histfile],
‘histsize’ => q[100],
‘http_proxy’ => q[],
‘inactivity_timeout’ => q[0],
‘index_expire’ => q[1],
‘inhibit_startup_message’ => q[0],
‘keep_source_where’ => q[/root/.cpan/sources],
‘links’ => q[/usr/bin/links],
‘make’ => q[/usr/bin/make],
‘make_arg’ => q[],
‘make_install_arg’ => q[],
‘makepl_arg’ => q[],
‘ncftp’ => q[],
‘ncftpget’ => q[],
‘no_proxy’ => q[],
‘pager’ => q[/usr/bin/less],
‘prerequisites_policy’ => q[ask],
‘scan_cache’ => q[atstart],
‘shell’ => q[/bin/bash],
‘tar’ => q[/bin/tar],
‘term_is_latin’ => q[1],
‘unzip’ => q[/usr/bin/unzip],
‘urllist’ => [q[http://cpan.modperl.cn/]],
‘wget’ => q[/usr/bin/wget],
};
1;
__END__
2)如果需要重新配置CPAN,输入：
#cpan
进入cpan后，输入：
#CPAN>o conf init
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