ubuntu下apt-get安装nodejs

最近在阿里云服务器上安装nodejs，自己编译挺麻烦的，决定用apt-get

直接执行apt-get install nodejs遇到了问题，具体看下面命令：

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apt-get install nodejs && node -v
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  libc-ares2 libv8-3.14.5
The following NEW packages will be installed:
  libc-ares2 libv8-3.14.5 nodejs
0 upgraded, 3 newly installed, 0 to remove and 186 not upgraded.
Need to get 1,912 kB of archives.
After this operation, 7,538 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://mirrors.aliyun.com/ubuntu/ trusty/main libc-ares2 amd64 1.10.0-2 [38.5 kB]
Get:2 http://mirrors.aliyun.com/ubuntu/ trusty/universe libv8-3.14.5 amd64 3.14.5.8-5ubuntu2 [1,189 kB]
Get:3 http://mirrors.aliyun.com/ubuntu/ trusty/universe nodejs amd64 0.10.25~dfsg2-2ubuntu1 [684 kB]
Fetched 1,912 kB in 1s (1,269 kB/s)
Selecting previously unselected package libc-ares2:amd64.
(Reading database ... 75222 files and directories currently installed.)
Preparing to unpack .../libc-ares2_1.10.0-2_amd64.deb ...
Unpacking libc-ares2:amd64 (1.10.0-2) ...
Selecting previously unselected package libv8-3.14.5.
Preparing to unpack .../libv8-3.14.5_3.14.5.8-5ubuntu2_amd64.deb ...
Unpacking libv8-3.14.5 (3.14.5.8-5ubuntu2) ...
Selecting previously unselected package nodejs.
Preparing to unpack .../nodejs_0.10.25~dfsg2-2ubuntu1_amd64.deb ...
Unpacking nodejs (0.10.25~dfsg2-2ubuntu1) ...
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Setting up libc-ares2:amd64 (1.10.0-2) ...
Setting up libv8-3.14.5 (3.14.5.8-5ubuntu2) ...
Setting up nodejs (0.10.25~dfsg2-2ubuntu1) ...
update-alternatives: using /usr/bin/nodejs to provide /usr/bin/js (js) in auto mode
Processing triggers for libc-bin (2.19-0ubuntu6.6) ...
The program 'node' can be found in the following packages:
 * node
 * nodejs-legacy
Try: apt-get install <selected package>

Google了一下是因为ubuntu默认的apt-get源nodejs版本是0.10.25。

查看apt-get源方法是：

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apt-cache show nodejs
Package: nodejs
Priority: extra
Section: universe/web
Installed-Size: 3043
Maintainer: Ubuntu Developers <[email protected]>
Original-Maintainer: Debian Javascript Maintainers <[email protected]>
Architecture: amd64
Version: 0.10.25~dfsg2-2ubuntu1
Depends: libc-ares2 (>= 1.8.0), libc6 (>= 2.14), libssl1.0.0 (>= 1.0.1), libstdc++6 (>= 4.1.1), libv8-3.14.5, zlib1g (>= 1:1.1.4)
Filename: pool/universe/n/nodejs/nodejs_0.10.25~dfsg2-2ubuntu1_amd64.deb
Size: 683742
MD5sum: 8d3cdf0c2277eb19f8a8666a54eeeed8
SHA1: b3c1f91229f2689141cc6d1a9a30dd355a444310
SHA256: f2a3aa1f11fcc5e37d50d9ec0e1eb7e255105b79dcb268a9fd8624f5ddead15a
Description-en: evented I/O for V8 javascript
 Node.js is a platform built on Chrome's JavaScript runtime for easily
 building fast, scalable network applications. Node.js uses an
 event-driven, non-blocking I/O model that makes it lightweight and
 efficient, perfect for data-intensive real-time applications that run
 across distributed devices.
 .
 Node.js is bundled with several useful libraries to handle server
 tasks:
 .
 System, Events, Standard I/O, Modules, Timers, Child Processes, POSIX,
 HTTP, Multipart Parsing, TCP, DNS, Assert, Path, URL, Query Strings.
Description-md5: e507fb472d7cdaceffc5b285a62d5c1b
Homepage: http://nodejs.org/
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu

更新apt-get源的方法有好多，这里推荐nodejs官方的源：nodesource/distributions

介绍一下用法：

1、添加一个NodeSource签名密钥

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curl --silent https://deb.nodesource.com/gpgkey/nodesource.gpg.key | sudo apt-key add -

2、在apt下增加一个nodesource.list文件

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cd /etc/apt/sources.list.d/ && vim nodesource.list

3、编辑nodesource.list文件

加入以下两行代码：

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deb https://deb.nodesource.com/node_4.x trusty main
deb-src https://deb.nodesource.com/node_4.x trusty main

node_4.x是版本号，可以指定安装版本。

4、更新apt-get源&&安装nodejs

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sudo apt-get update
sudo apt-get install nodejs