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
重新配置后Config.pm如下：
$CPAN::Config = {
‘applypatch’ => q[],
‘auto_commit’ => q[0],
‘build_cache’ => q[10],
‘build_dir’ => q[/root/.cpan/build],
‘build_dir_reuse’ => q[1],
‘build_requires_install_policy’ => q[ask/yes],
‘bzip2’ => q[/usr/bin/bzip2],
‘cache_metadata’ => q[1],
‘check_sigs’ => q[0],
‘colorize_output’ => q[0],
‘commandnumber_in_prompt’ => q[1],
‘cpan_home’ => q[/root/.cpan],
‘curl’ => q[/usr/bin/curl],
‘dontload_hash’ => { },
‘ftp’ => q[/usr/kerberos/bin/ftp],
‘ftp_passive’ => q[1],
‘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],
‘load_module_verbosity’ => q[v],
‘lynx’ => q[],
‘make’ => q[/usr/bin/make],
‘make_arg’ => q[],
‘make_install_arg’ => q[],
‘make_install_make_command’ => q[/usr/bin/make],
‘makepl_arg’ => q[],
‘mbuild_arg’ => q[],
‘mbuild_install_arg’ => q[],
‘mbuild_install_build_command’ => q[./Build],
‘mbuildpl_arg’ => q[],
‘ncftp’ => q[],
‘ncftpget’ => q[],
‘no_proxy’ => q[],
‘pager’ => q[/usr/bin/less],
‘patch’ => q[/usr/bin/patch],
‘prefer_installer’ => q[MB],
‘prefs_dir’ => q[/root/.cpan/prefs],
‘prerequisites_policy’ => q[ask],
‘scan_cache’ => q[atstart],
‘shell’ => q[/bin/bash],
‘show_unparsable_versions’ => q[0],
‘show_upload_date’ => q[0],
‘show_zero_versions’ => q[0],
‘tar’ => q[/bin/tar],
‘tar_verbosity’ => q[v],
‘term_is_latin’ => q[1],
‘term_ornaments’ => q[1],
‘test_report’ => q[0],
‘unzip’ => q[/usr/bin/unzip],
‘urllist’ => [q[http://cpan.modperl.cn/]],
‘use_sqlite’ => q[0],
‘wget’ => q[/usr/bin/wget],
‘yaml_load_code’ => q[0],
‘yaml_module’ => q[YAML],
};
1;
__END__
3)安装perl组件出错：
/usr/bin/make — NOT OK
Running make test
Can’t test without successful make
Running make install
make had returned bad status, install seems impossible
一.可以尝试
#cpan
cpan>o conf make /usr/bin/make
cpan>o conf commit
cpan>exit
然后用perl命令再安装一下该组件，看能否成功。
二.原因也可能是默认缓存/root/.cpan中的数据损坏
rm -rf ~/.cpan
删除后在perl -MCPAN -e shell中执行reload index
然后执行install Bundle::CPAN
最后执行reload CPAN即可正常通过命令行install MODULES