Programming in C Theory and Lab EST 102 for KTU 2019 Scheme- Dr Binu V P

The parameters passed to the program when the program is invoked are known as command line arguments. These parameters are the additional information like filename or other kind of input to the program. By passing command line arguments there is no need for the user to provide the input while executing the program. These command line arguments can be processed by using the arguments available in the main function. The main allows two parameters namely: argc and argv. The argc represents the argument counter which contains the number of arguments passed in the command line. The argv is a character pointer array which points to the arguments passed in the command line. To know the number of command line arguments, we can use the argc parameter of the main function and to access the individual arguments, we can use the argv array. The first element in the argv array is always the program name. So the first argument can be accessed by using argv[1] and so on. The prototype of main f