gopath.txt

# go env
export GOROOT=/opt/go
export GOBIN=$GOROOT/bin


export PATH=/opt/go/bin



---------------------

1.
vim ~/.bashrc
2. go 的安装路径
export PATH=$PATH:/opt/go/bin/
3.
source ~/.profile

不错的文章：

http://www.cnblogs.com/wdliu/p/9272220.html