cygwin 中的 cpan 不可用

Question

我尝试像 answer 一样在 cygwin 中安装 Perl 模块，但没有成功。我收到以下错误：

$ perl -MCPAN -e shell
Can't locate CPAN.pm in @INC (you may need to install the CPAN module) (@INC   contains: /usr/lib/perl5/site_perl/5.22/x86_64-cygwin-threads /usr/lib/perl5/site_perl/5.22 /usr/lib/perl5/vendor_perl/5.22/x86_64-cygwin-threads /usr/lib/perl5/vendor_perl/5.22 /usr/lib/perl5/5.22/x86_64-cygwin-threads /usr/lib/perl5/5.22 .).
BEGIN failed--compilation aborted.

如何在我的 cygwin 中获取 cpan？

还有一些额外的细节。实际上我的目的是像 answer 一样安装 ack。但是，它没有用。安装后出现错误：

$ ack
Can't locate filetest.pm in @INC (you may need to install the filetest module) (@INC contains: /usr/lib/perl5/site_perl/5.22/x86_64-cygwin-threads /usr/lib/perl5/site_perl/5.22 /usr/lib/perl5/vendor_perl/5.22/x86_64-cygwin-threads /usr/lib/perl5/vendor_perl/5.22 /usr/lib/perl5/5.22/x86_64-cygwin-threads /usr/lib/perl5/5.22 .) at /home/loom/bin/ack line 218.
BEGIN failed--compilation aborted at /home/loom/bin/ack line 218.

以下是我试图定位cpan

$ cpan
-bash: cpan: command not found

$ ll /usr/lib/perl5/5.22/CPAN.pm
ls: cannot access '/usr/lib/perl5/5.22/CPAN.pm': No such file or directory

$ find /usr/ -name *.pm | grep CPAN
/usr/lib/perl5/5.22/CPAN/Meta/Converter.pm
/usr/lib/perl5/5.22/CPAN/Meta/Feature.pm
/usr/lib/perl5/5.22/CPAN/Meta/History.pm
/usr/lib/perl5/5.22/CPAN/Meta/Merge.pm
/usr/lib/perl5/5.22/CPAN/Meta/Prereqs.pm
/usr/lib/perl5/5.22/CPAN/Meta/Requirements.pm
/usr/lib/perl5/5.22/CPAN/Meta/Spec.pm
/usr/lib/perl5/5.22/CPAN/Meta/Validator.pm
/usr/lib/perl5/5.22/CPAN/Meta/YAML.pm
/usr/lib/perl5/5.22/CPAN/Meta.pm
/usr/lib/perl5/5.22/Parse/CPAN/Meta.pm

Answer 1

重新安装 perl 有帮助。

$ apt-cyg install perl

cygwin 中的 cpan 不可用

unavailable cpan in cygwin

perl

cygwin

cpan