Question

用例

我的系统管理员刚刚通过rpm安装了一个Perl模块，尽管我可以在单行中成功use，但我想知道模块的安装位置。

我显然可以梳理@INC中的每个路径位置，但Perl有没有办法告诉我它从哪里成功加载模块？

Answer 1

那是%INC哈希的用途。它显示了加载模块的位置。

$ perl -MDBI -MData::Dumper -E'say Dumper \%INC'
$VAR1 = {
          'XSLoader.pm' => '/usr/share/perl5/XSLoader.pm',
          'warnings/register.pm' => '/usr/share/perl5/warnings/register.pm',
          'List/Util.pm' => '/usr/local/lib64/perl5/List/Util.pm',
          'warnings.pm' => '/usr/share/perl5/warnings.pm',
          'DBI.pm' => '/usr/lib64/perl5/vendor_perl/DBI.pm',
          'overloading.pm' => '/usr/share/perl5/overloading.pm',
          'Config.pm' => '/usr/lib64/perl5/Config.pm',
          'Carp.pm' => '/usr/share/perl5/vendor_perl/Carp.pm',
          'bytes.pm' => '/usr/share/perl5/bytes.pm',
          'Exporter/Heavy.pm' => '/usr/share/perl5/vendor_perl/Exporter/Heavy.pm',
          'Scalar/Util.pm' => '/usr/local/lib64/perl5/Scalar/Util.pm',
          'strict.pm' => '/usr/share/perl5/strict.pm',
          'Exporter.pm' => '/usr/share/perl5/vendor_perl/Exporter.pm',
          'vars.pm' => '/usr/share/perl5/vars.pm',
          'constant.pm' => '/usr/share/perl5/vendor_perl/constant.pm',
          'overload.pm' => '/usr/share/perl5/overload.pm',
          'DynaLoader.pm' => '/usr/lib64/perl5/DynaLoader.pm',
          'Data/Dumper.pm' => '/usr/lib64/perl5/vendor_perl/Data/Dumper.pm',
          'feature.pm' => '/usr/share/perl5/feature.pm'
        };

更新：实际上，这是一种更简单的方法。

$ perldoc -lm Your::Module

有没有办法告诉模块从哪个@INC路径加载？

1 个答案: