Today , i will demonstrate how to check command line arguments in GoLang. First of all , you have to answer , why gophers follow gofmt ? You can answer this question below. package main import ( "fmt" "os" ) func main(){ fmt.Println("command args :" , os.Args[0:]) } import "os" os is most powerful library in go or you can say a core of go. All the low level operation require os library , such as process Id, chown, mkdir, get environment path or set , threads etc. Concurrency also achieved through os libraries . Upcoming post concurrency discuss in detail. https://www.golang-book.com/books/intro/10 os.Args[0:] args[0:] slice the array length . Slicing array length or capacity. Just to remember, that in case o...