Question

what is command line argument program?
How we can write n run it?

Answer 1

See the extensive article at http://en.wikipedia.org/wiki/Command-line_interface

Answer 2

The command line is often interacted with through an application such as the 'terminal'. It provides an alternative approach to interacting with your computer. For examples programs are run by typing in text such as 'mkdir folder' - which creates a new directory called 'folder'. The string 'folder ' is an argument passed into the application 'mkdir'.

The programming language you're using should have an API that allows you to create programs that interact with the command line. You can also use the command lines to run programs.

Answer 3

thanks 4r reply guys...I got some knowledge about cmd line arg....