CPANM路径未正确配置

Question

提取草莓Perl的新副本后，我在CPANM中得到一个错误。

C:\portable_perl>cpanm --self-upgrade
You are running cpanm from the path where your current perl won't install execut
ables to.
Because of that, cpanm --self-upgrade won't upgrade the version of cpanm you're
running.

  cpanm path   : C:\portable_perl\perl\bin/cpanm
  Install path : C:\portable_perl\perl\site\bin

It means you either installed cpanm globally with system perl, or use distro pac
kages such
as rpm or apt-get, and you have to use them again to upgrade cpanm.

C:\portable_perl>

在安装App::cpanminus之后，我会得到一个稍微不同的错误。

C:\portable_perl>cpanm --self-upgrade
You are running cpanm from the path where your current perl won't install executables to.
Because of that, cpanm --self-upgrade won't upgrade the version of cpanm you're running.

  cpanm path   : C:\portable_perl\perl\site\bin/cpanm
  Install path : C:\portable_perl\perl\site\bin

It means you either installed cpanm globally with system perl, or use distro packages such
as rpm or apt-get, and you have to use them again to upgrade cpanm.

C:\portable_perl>

有什么办法可以设置这条路吗？还是以不同的方式安装CPANM？如果这一点重要的话，我将在Windows7 x64上运行这个程序。

Answer 1

脚本可以

$0 !~ /^$install_base/

$0在哪里

C:\portable_perl\perl\site\bin/cpanm

而$install_base是

C:\portable_perl\perl\site\bin

没想到会有反斜杠。\po、\pe、\s和\b在正则表达式中都有着特殊的意义。这是cpanm中的一个bug。