Run an external command with golang

cmd.go

// run a command using the shell; no need to split args
// from https://stackoverflow.com/questions/6182369/exec-a-shell-command-in-go
func runcmd(cmd string, shell bool) []byte {
    if shell {
        out, err := exec.Command("bash", "-c", cmd).Output()
        if err != nil {
            log.Fatal(err)
            panic("some error found")
        }
        return out
    }
    out, err := exec.Command(cmd).Output()
    if err != nil {
        log.Fatal(err)
    }
    return out
}