如何在Perl中设置环境变量？ [英] How do I set an environment variable in Perl?

问题描述

如何在Perl中设置环境变量？

How do I set an environment variable in Perl?

我想将 $ HOME 设置为不同的目录比默认值。

I want to set $HOME to a different directory than the default.

推荐答案

你可以这样做：

$ENV{HOME} = 'something different';

但请注意，这只会在脚本的其余部分产生影响。当您的脚本退出时，调用shell将不会看到任何更改。

But please note that this will only have an effect within the rest of your script. When your script exits, the calling shell will not see any changes.

As perldoc -v％ENV 说： / p>

As perldoc -v %ENV says:

％ENV 哈希％ENV 包含您当前的环境。在ENV中设置值可以随后更改任何子进程的环境 fork（）off。

%ENV The hash %ENV contains your current environment. Setting a value in "ENV" changes the environment for any child processes you subsequently "fork()" off.

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