Run go file as a shebang

goshebang.md

Add //usr/bin/env go run $0 $@; exit to go file to run like a shell script

$ cat a.go
//usr/bin/env go run $0 $@; exit

package main

import "fmt"

func main() {
        fmt.Println("hello world")
}
$ chmod a+x a.go
$ ./a.go
hello world
$