What are command line arguments give example?

Command line arguments are the arguments which the user gives from the operating system’s command line during the time of execution. Earlier, we used main() functions without arguments. These command line arguments are handled by the main() function.

What type are command line arguments in C?

Command line arguments in C/C++

  • argc (ARGument Count) is int and stores number of command-line arguments passed by the user including the name of the program.
  • The value of argc should be non negative.
  • argv(ARGument Vector) is array of character pointers listing all the arguments.

What is the type of command line arguments?

When main has parameters, they are known as Command-line arguments. two arguments, one an integer and the other an array of pointers to char(strings) that represent user-determined values to be passed to main. The first argument, argc, defines the number of elements in the array identified in the second argument.

What are command line arguments How are they useful?

An argument passed when a Java program is run is called a command line argument. The arguments can be used as input. So, it provides a convenient way to check out the behavior of the program on various values. We can pass any number of arguments from the command prompt or nearly anywhere a Java program is executed.

How do I pass a command line argument in Windows?

Every executable accepts different arguments and interprets them in different ways. For example, entering C:\abc.exe /W /F on a command line would run a program called abc.exe and pass two command line arguments to it: /W and /F. The abc.exe program would see those arguments and handle them internally.

How can arguments be passed from the command line into your program?

Command line arguments are passed to the main() method. Here argc counts the number of arguments on the command line and argv[ ] is a pointer array which holds pointers of type char which points to the arguments passed to the program.

How do I run a command line argument in Visual Studio?


  1. Right-click the default project (the one to be run) in Visual Studio and select “Properties”.
  2. Click on the “Debug” tab on the left.
  3. Enter your command line arguments in the textbox labeled “Command line arguments”.
  4. Save the updated properties and run the project.

Why do you use command line arguments?

It is possible to pass some values from the command line to your C programs when they are executed. These values are called command line arguments and many times they are important for your program especially when you want to control your program from outside instead of hard coding those values inside the code.

What is command line arguments in Windows?

Windows Basics Command line arguments are just values that are passed to an executable file when it is run. Also known as “command line switches” or “command line options,” command line arguments are usually used to set program options, or to pass along the location of a file that the program should load.