打开nodejs官网

https://nodejs.org/en/download/

选择二进制 右键复制链接

1.在Linux控制台输入  wget https://nodejs.org/dist/v6.10.2/node-v6.10.2-linux-x64.tar.xz

[root@iZm5efk0kft7tkZ home]# wget https://nodejs.org/dist/v6.10.2/node-v6.10.2-l                                                                                                                                                             inux-x64.tar.xz
--2017-04-07 08:48:46--  https://nodejs.org/dist/v6.10.2/node-v6.10.2-linux-x64.                                                                                                                                                             tar.xz
Resolving nodejs.org... 104.20.22.46, 104.20.23.46, 2400:cb00:2048:1::6814:162e,                                                                                                                                                              ...
Connecting to nodejs.org|104.20.22.46|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 9366128 (8.9M) [application/x-xz]
Saving to: `node-v6.10.2-linux-x64.tar.xz'

100%[======================================>] 9,366,128    521K/s   in 18s

2017-04-07 08:49:06 (499 KB/s) - `node-v6.10.2-linux-x64.tar.xz' saved [9366128/                                                                                                                                                             9366128]

2.下载完成后解压文件

tar xf node-v6.10.2-linux-x64.tar.xz -C /usr/local/

3.建立连接

 ln -s /usr/local/node-v6.10.2-linux-x64/bin/node /  

ln -s /usr/local/node-v6.10.2-linux-x64/bin/npm /usr/local/bin

完成

测试一下输入node

没提示错误，搞定