将 Node.js 设置为 $PATH
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Set Node.js to $PATH
提问by Apollo
I am studying RoR and I am setting this virtual machine to "deploy" RoR and I got stuck in the Node.js installation.
我正在研究 RoR，我正在将此虚拟机设置为“部署”RoR，但我在 Node.js 安装中陷入困境。
I am using Ubuntu 12.04 and I followed this step of this guide:
我使用的是 Ubuntu 12.04，我遵循了本指南的这一步：
http://railsapps.github.com/installing-rails.html
http://railsapps.github.com/installing-rails.html
Since Rails 3.1, a JavaScript runtime has been needed for development on Ubuntu Linux (it is not needed for Mac OS X or Windows). For development on Linux Ubuntu, it is best to install the Node.js server-side JavaScript environment:
$ sudo apt-get install nodejsand set it in your $PATH.
从 Rails 3.1 开始，在 Ubuntu Linux 上开发需要一个 JavaScript 运行时（Mac OS X 或 Windows 不需要它）。在 Linux Ubuntu 上开发，最好安装 Node.js 服务器端 JavaScript 环境：
$ sudo apt-get install nodejs并将其设置在您的 $PATH 中。
What does it mean, "set to my $PATH"?
“设置为我的 $PATH”是什么意思？
I've been searching for it on google in the last couple of hours and all solutions are different, for different problems and I get no simple answer for that. Can you give a little light here?
在过去的几个小时里，我一直在谷歌上搜索它，所有解决方案都不同，针对不同的问题，我没有得到简单的答案。你能在这里给点光吗？
Thanks!
谢谢！
回答by mihai
You don't have to worry about that, the apt-get installcommand will do that for you.
It adds the path to the nodejs process (usually /usr/bin/node) to the global $PATH variable. This ensures that when you type nodein your terminal it will start the nodejs process.
你不必担心，apt-get install命令会为你做这件事。它将 nodejs 进程的路径（通常是/usr/bin/node）添加到全局 $PATH 变量中。这确保当您node在终端中输入时，它将启动 nodejs 进程。
If for some weird reason you cannot start it, you'll have to manually add the path to your node installation to the $PATH. You can do this by editing your ~/.bashrcfile and adding:
如果由于某种奇怪的原因无法启动它，则必须手动将节点安装的路径添加到 $PATH。您可以通过编辑~/.bashrc文件并添加：
PATH=/usr/bin/node:$PATH
回答by Vaughany
I've been trying to install npmand it has complained about nodenot being in the path. Funnily enough, nodejswas, but nodewasn't. I ended up solving the problem thus:
我一直在尝试安装npm，但它抱怨node不在路径中。有趣的是，nodejs是，但node不是。我最终解决了这个问题：
$ cd /usr/bin/
$ sudo ln -s nodejs node
...which symlinks nodeto nodejs. Now npminstalls without complaints.
...符号链接node到nodejs. 现在npm安装没有投诉。
回答by Rob Raisch
Depending on which shell you are running, the answer may be different, but a good starting place might be http://www.troubleshooters.com/linux/prepostpath.htm
根据您运行的 shell，答案可能会有所不同，但一个好的起点可能是http://www.troubleshooters.com/linux/prepostpath.htm
