Home » Golang » Golang Programs

Golang program to demonstrate the command line arguments

Here, we are going to demonstrate the command line arguments in Golang (Go Language).
Submitted by Nidhi, on April 12, 2021 [Last updated : March 04, 2023]

Command line arguments in Golang

Problem Solution:

In this program, we will pass arguments at the command line during the execution of the program. Here we will print program-name and arguments on the console screen.

Program/Source Code:

The source code to demonstrate the command-line arguments is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

Golang code to demonstrate the example of command line arguments

// Golang program to demonstrate
// the command-line argument

package main

import "fmt"
import "os"

func main() {
	programName := os.Args[0]
	arg1 := os.Args[1]
	arg2 := os.Args[2]

	fmt.Println("Program Name: ", programName)
	fmt.Println("Argument1:    ", arg1)
	fmt.Println("Argument2:    ", arg2)
}

Output:

$ go run sample.go "Hello World" 108

Program Name:  /tmp/go-build3253235759/b001/exe/sample
Argument1:     Hello World
Argument2:     108

Explanation:

In the above program, we declare the package main. The main package is used to tell the Go language compiler that the package must be compiled and produced the executable file. Here, we imported the fmt, os packages then we can use a function related to the fmt and os package.

In the main() function, we passed arguments at the command line and we printed the program name and other arguments on the console screen.

Golang Command-Line Arguments Programs »

---