golang passing parameter to the program

To pass parameters to a Go program, you can make use of command-line arguments. Here's a step-by-step explanation of how you can achieve this:

Import the os package: In your Go program, start by importing the os package. This package provides a way to access command-line arguments.
Access the command-line arguments: To access the command-line arguments, you can use the os.Args variable. os.Args is a slice of strings that contains all the command-line arguments passed to the program.
Extract the required parameters: Since os.Args is a slice, you can access individual arguments by their index. The first argument, os.Args[0], is the name of the program itself. The subsequent arguments, os.Args[1] onwards, are the parameters passed to the program.
Process the parameters: Once you have extracted the required parameters, you can perform any necessary processing on them. This could include parsing them as numbers, performing calculations, or using them to control the flow of your program.
Run the program with parameters: To run your Go program with parameters, you'll need to execute it from the command line and pass the parameters after the program name. For example, to pass the parameters "hello" and "world" to a program called "myprogram.go", you would run go run myprogram.go hello world.

That's it! By following these steps, you can pass parameters to your Go program using command-line arguments. Remember to import the os package, access the command-line arguments through os.Args, extract the required parameters, process them as needed, and finally run your program with the desired parameters.