本节内容：
perl模块安装、自定义路径。
一，安装perl模块到非自定义目录
如何安装perl模块到指定的路径呢？
1) Use INSTALL_BASE / --install_base
MakeMaker (as of 6.31) and Module::Build (as of 0.28) both can install to the same locations using the "install_base" concept. See "INSTALL_BASE" in ExtUtils::MakeMaker for details. To get MM and MB to install to the same location simply set INSTALL_BASE in MM and --install_base in MB to the same location.
2) Use PREFIX / --prefix
Module::Build 0.28 added support for --prefix which works like MakeMaker's PREFIX.
二，使用自定义目录下的模块
BEGIN {
push (@INC,'/opt/perl/lib');
}
BEGIN {
unshift @INC,'/opt/perl/lib';
}
use lib '/opt/perl/lib';
use local::lib; # sets up a local lib at ~/perl5
use local::lib '~/foo'; # same, but ~/foo
# Or...
use FindBin;
use local::lib "$FindBin::Bin/../support"; # app-local support library
use FindBin;
use lib "$FindBin::Bin/../lib";
# or
use FindBin qw($Bin);
use lib "$Bin/../lib";
三，查找已经安装的模块，可用shell/ target=_blank class=infotextkey>shell脚本与perl代码来实现。
例2，Shell 脚本：
例2，Perl 脚本：