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 设置为与默认目录不同的目录.

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，这只会对脚本的其余部分产生影响.当您的脚本退出时，调用 shell 不会看到任何变化.

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.

正如 perldoc -v %ENV 所说:

%ENV 哈希 %ENV 包含您当前的环境.在ENV"中设置一个值会更改您随后fork()"关闭的任何子进程的环境.

%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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