ubuntu 安装go语言环境

参考：

1. 下载go源代码

sudo apt-get install mercurial
hg clone -u release

2. 编译安装go

cd ~/go/src
./all.bash

安装完后会提示如下信息：

ALL TESTS PASSED

---
Installed Go for linux/amd64 in /home/you/go.
Installed commands in /home/you/go/bin.
*** You need to add /home/you/go/bin to your $PATH. ***

3. 测试go
vi hello.go:

package main

import "fmt"

func main() {
fmt.Printf("hello, world\n")
}

运行：

go run hello.go

更新go

cd ~/go/src
hg pull
hg update release
./all.bash