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sources/tech/20180710 Getting started with Perlbrew.md

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-
-Getting started with Perlbrew
-======
-
-![](https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/coffee_cafe_brew_laptop_desktop.jpg?itok=G-n1o1-o)
-
-What's better than having Perl installed on your system? Having multiple Perls installed on your system! With [Perlbrew][1] you can do just that. But why—apart from surrounding yourself in Perl—would you want to do that?
-
-The short answer is that different versions of Perl are… different. Application A may depend on behavior deprecated in a newer release, while Application B needs new features that weren't available last year. If you have multiple versions of Perl installed, each script can use the version that best suits it. This also comes in handy if you're a developer—you can test your application against multiple versions of Perl so that, no matter what your users are running, you know it works.
-
-### Install Perlbrew
-
-The other benefit is that Perlbrew installs to the user's home directory. That means each user can manage their Perl versions (and the associated CPAN packages) without having to involve the system administrators. Self-service means quicker installation for the users and gives sysadmins more time to work on the hard problems.
-
-The first step is to install Perlbrew on your system. Many Linux distributions have it in the package repo already, so you're just a `dnf install perlbrew` (or whatever is the appropriate command for your distribution) away. You can also install the `App::perlbrew` module from CPAN with `cpan App::perlbrew`. Or you can download and run the installation script at [install.perlbrew.pl][2].
-
-To begin using Perlbrew, run `perlbrew init`.
-
-### Install a new Perl version
-
-Let's say you want to try the latest development release (5.27.11 as of this writing). First, you need to install the package:
-```
-perlbrew install 5.27.11
-
-```
-
-### Switch Perl version
-
-Now that you have a new version installed, you can use it for just that shell:
-```
-perlbrew use 5.27.11
-
-```
-
-Or you can make it the default Perl version for your account (assuming you set up your profile as instructed by the output of `perlbrew init`):
-```
-perlbrew switch 5.27.11
-
-```
-
-### Run a single script
-
-You can run a single command against a specific version of Perl, too:
-```
-perlberew exec 5.27.11 myscript.pl
-
-```
-
-Or you can run a command against all your installed versions. This is particularly handy if you want to run tests against a variety of versions. In this case, specify Perl as the version:
-```
-.plperlbrew exec perl myscriptpl
-
-```
-
-### Install CPAN modules
-
-If you want to install CPAN modules, the `cpanm` package is an easy-to-use interface that works well with Perlbrew. Install it with:
-```
-perlbrew install-cpamn
-
-```
-
-You can then install CPAN modules with the `cpanm` command:
-```
-cpanm CGI::simple
-
-```
-
-### But wait, there's more!
-
-This article covers basic Perlbrew usage. There are many more features and options available. Look at the output of `perlbrew help` as a starting point, or check out the [App::perlbrew documentation][3]. What other features do you love in Perlbrew? Let us know in the comments.
-
---------------------------------------------------------------------------------
-
-via: https://opensource.com/article/18/7/perlbrew
-
-作者：[Ben Cotton][a]
-选题：[lujun9972](https://github.com/lujun9972)
-译者：[译者ID](https://github.com/译者ID)
-校对：[校对者ID](https://github.com/校对者ID)
-
-本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
-
-[a]:https://opensource.com/users/bcotton
-[1]:https://perlbrew.pl/
-[2]:https://raw.githubusercontent.com/gugod/App-perlbrew/master/perlbrew-install
-[3]:https://metacpan.org/pod/App::perlbrew

translated/tech/20180710 Getting started with Perlbrew.md

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+开始使用 Perlbrew
+======
+
+![](https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/coffee_cafe_brew_laptop_desktop.jpg?itok=G-n1o1-o)
+
+什么比在系统上安装 Perl 更好？在系统中安装多个版本的 Perl。使用 [Perlbrew][1] 你可以做到这一点。但是为什么，除了让你包围在 Perl 下之外，你想要那样做吗？
+
+简短的回答是不同版本的 Perl 是......不同的。程序 A 可能依赖于较新版本中不推荐使用的行为，而程序 B 需要去年无法使用的新功能。如果你安装了多个版本的 Perl，则每个脚本都可以使用最适合它的版本。如果您是开发人员，这也会派上用场，你可以针对多个版本的 Perl 测试你的程序，这样无论你的用户运行什么，你都知道它是否工作。
+
+### 安装 Perlbrew
+
+另一个好处是 Perlbrew 安装到用户的家目录。这意味着每个用户都可以管理他们的 Perl 版本（以及相关的 CPAN 包），而无需与系统管理员联系。自助服务意味着为用户提供更快的安装，并为系统管理员提供更多时间来解决难题。
+
+第一步是在你的系统上安装 Perlbrew。许多 Linux 发行版已经在包仓库中拥有它，因此你只需要 `dnf install perlbrew`（或者适用于你的发行版的命令）。你还可以使用 `cpan App::perlbrew` 从 CPAN 安装 `App::perlbrew` 模块。或者你可以在 [install.perlbrew.pl][2] 下载并运行安装脚本。
+
+要开始使用 Perlbrew，请运行 `perlbrew init`。
+
+### 安装新的 Perl 版本
+
+假设你想尝试最新的开发版本（撰写本文时为 5.27.11）。首先，你需要安装包：
+```
+perlbrew install 5.27.11
+
+```
+
+### 切换 Perl 版本
+
+现在你已经安装了新版本，你可以将它用于该 shell：
+```
+perlbrew use 5.27.11
+
+```
+
+或者你可以将其设置为你帐户的默认 Perl 版本（假设你按照 `perlbrew init` 的输出设置了你的配置文件）：
+```
+perlbrew switch 5.27.11
+
+```
+
+### 运行单个脚本
+
+你也可以用特定版本的 Perl 运行单个命令：
+```
+perlberew exec 5.27.11 myscript.pl
+
+```
+
+或者，你可以针对所有已安装的版本运行命令。如果你想针对各种版本运行测试，这尤其方便。在这种情况下，请将 Perl 指定版本：
+```
+.plperlbrew exec perl myscriptpl
+
+```
+
+### 安装 CPAN 模块
+
+如果你想安装 CPAN 模块，`cpanm` 包是一个易于使用的界面，可以很好地与 Perlbrew 一起使用。用下面命令安装它：
+```
+perlbrew install-cpamn
+
+```
+
+然后，你可以使用 `cpanm` 命令安装 CPAN 模块：
+```
+cpanm CGI::simple
+
+```
+
+### 但是等下，还有更多！
+
+本文介绍了基本的 Perlbrew 用法。还有更多功能和选项可供选择。从查看 `perlbrew help` 的输出开始，或查看[ App::perlbrew 文档][3]。你还喜欢 Perlbrew 的其他什么功能？让我们在评论中知道。
+
+--------------------------------------------------------------------------------
+
+via: https://opensource.com/article/18/7/perlbrew
+
+作者：[Ben Cotton][a]
+选题：[lujun9972](https://github.com/lujun9972)
+译者：[geekpi](https://github.com/geekpi)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]:https://opensource.com/users/bcotton
+[1]:https://perlbrew.pl/
+[2]:https://raw.githubusercontent.com/gugod/App-perlbrew/master/perlbrew-install
+[3]:https://metacpan.org/pod/App::perlbrew