Building RESTful Web services with Go

Basics for writing a command-line tool in Go

Go provides a basic library called flag. It refers to the command-line flags. Since it is already packed with the Go distribution, there is no need to install anything externally. We can see the absolute basics of writing the command-line tool. The flag package has multiple functions, such as Int and String, to handle the input given as command-line flags. Suppose we need to take a name from the user and print it back to the console. We use the flag.String method, as shown in the following code snippet:

import "flag"
var name = flag.String("name", "No Namer", "your wonderful name")

Let us write a short program for clear details. Create a file called flagExample.go in your $GOPATH/src/github.com/narenaryan ...