Install GOLANG on UNIX

Steps:
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• Get the current archive from the list at - https://golang.org/dl/
• Untar it . For example 
• tar xvf  go1.3.3.src.tar.gz
• A new directory of "go" will be generated.
• cd to go/src
• run all.bash
• ./all.bash
• Now the go binary will be generated at the go/bin directory.( check whether go and gofmt binaries are generated or not)
• Open the file ~/.bashrc
• Add the PATH variable with the bin directory to your .bashrc file at the end like
• #PATH=$PATH:/home/arun/Documents/GITHUB/golan/go/bin
• Save the file.
• Now we can run a go file directly. 
• Write a hello.go using any editor. For example
• vim hello.go
• press i for insert
• copy the code below from here.

package main
import "fmt"
func main(){
fmt.Printf("Hi How r u\n")
}

• press the ctrl+shift+v to copy the file to termival vim.
• press esc and :wq to write and quit.
• to run the code try 
• go run hello.go
• If everything went right you will see the "Hi How r u" statement on terminal.
• Thats it!