Mac下，nvm安装Node及配置

1. 安装nvm

• 为了兼容性和效率，nvm和n进行Node版本管理很有必要，我选择使用nvm控制node版本。首先要说的是不能用brew去安装nvm，官方文档已经说明不支持，这里用以下命令安装：

curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.30.2/install.sh | bash

• 此时nvm就被安装在了_{/.nvm下啦，接下来就需要配一下环境变量了，这里以zsh为例，在}/.zshrc这个配置文件中配置，如果你的shell用的是bash或其它的，就找找看_{/.bash_profile或者}/.profile，~/.bashrc。
• 编辑器打开~/.zshrc文件，如果不会就输入open ~/.zshrc；
• 在最下面一行输入：

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm

这一步的作用是每次新打开一个bash，nvm都会被自动添加到环境变量中了。

• 完成后输入 source ~/.zshrc重新启动一下配置。
• 输入nvm可以看到如下信息：

 zhao@EchodeMacBook-Pro  ~  source ~/.zshrc
 zhao@EchodeMacBook-Pro  ~  nvm
Node Version Manager
Note: <version> refers to any version-like string nvm understands. This includes:
   full or partial version numbers, starting with an optional "v" (0.10, v0.1.2, v1)
   default (built-in) aliases: node, stable, unstable, iojs, system
   custom aliases you define with `nvm alias foo`
Usage:
  nvm help                                  Show this message
  nvm --version                             Print out the latest released version of nvm
  nvm install [-s] <version>                Download and install a <version>, [-s] from source. Uses .nvmrc if available
    --reinstall-packages-from=<version>     When installing, reinstall packages installed in <node|iojs|node version number>
  nvm uninstall <version>                   Uninstall a version
  nvm use [--silent] <version>              Modify PATH to use <version>. Uses .nvmrc if available
  nvm exec [--silent] <version> [<command>] Run <command> on <version>. Uses .nvmrc if available
  nvm run [--silent] <version> [<args>]     Run `node` on <version> with <args> as arguments. Uses .nvmrc if available
  nvm current                               Display currently activated version
  nvm ls                                    List installed versions
  nvm ls <version>                          List versions matching a given description
  nvm ls-remote                             List remote versions available for install
  nvm version <version>                     Resolve the given description to a single local version
  nvm version-remote <version>              Resolve the given description to a single remote version
  nvm deactivate                            Undo effects of `nvm` on current shell
  nvm alias [<pattern>]                     Show all aliases beginning with <pattern>
  nvm alias <name> <version>                Set an alias named <name> pointing to <version>
  nvm unalias <name>                        Deletes the alias named <name>
  nvm reinstall-packages <version>          Reinstall global `npm` packages contained in <version> to current version
  nvm unload                                Unload `nvm` from shell
  nvm which [<version>]                     Display path to installed node version. Uses .nvmrc if available
Example:
  nvm install v0.10.32                  Install a specific version number
  nvm use 0.10                          Use the latest available 0.10.x release
  nvm run 0.10.32 app.js                Run app.js using node v0.10.32
  nvm exec 0.10.32 node app.js          Run `node app.js` with the PATH pointing to node v0.10.32
  nvm alias default 0.10.32             Set default node version on a shell
Note:
  to remove, delete, or uninstall nvm - just remove the `$NVM_DIR` folder (usually `~/.nvm`)

至此，nvm安装完成。

2. 安装Node

• 查看Node所有版本，用nvm ls-remote命令，如下：

  zhao@EchodeMacBook-Pro  ~  nvm ls-remote
        v0.1.14
        v0.1.15
        v0.1.16
        ...
         v7.7.1
         v7.7.2
         v7.7.3

正常安装的话，会超级慢，如果想尝试，就用nvm install v6.10.0试试，不过这里推荐使用国内镜像：

NVM_NODEJS_ORG_MIRROR=https://npm.taobao.org/mirrors/node nvm install 6

需要哪个版本，就在最后将6换成对应的版本号就行，默认下载版本中最新的版本号。

3. 切换Node版本

没有常识，目前还没有需求，具体的可以参考如下链接：
使用nvm轻松切换node版本

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转载注明出处哦，谢谢啦