With comments please.

CpSe 1111 Lab 13 Command-Line Arguments, sscanf and File Pointers Overview For this weck's lab, you will gain some experience with . command-line arguments using sscanf ) to get the values entered at the command-line .file pointers working out the logic (ie thinking through an algonithm) for what could be a confusing problem at It is often useful to pass arguments to a program via the command-line. For example. gcc -g -Wall-o p12 p12. passes 6 arguments to the gce compiler 0 (the first one is always the name of the evecutable) gcc -g -Nall p12 p12.c Remember that the main function hcader, when using command-line arguments, looks like this: int main int argc, charargvt where argc contains the number of arguments entered at the command-line (including the name of the executable, which is 6 for the above example) and argvI1 is the array of pointers, each of which points to the value of the argument that was entered at the command-line. The first item in the argv 1 array is always a pointer that points to the name of the executable (gcc in the above example). The sscanf function is used to extract something that is already in memory. It is often used to get items from the argv I1 array when command-line arguments are used. For example, if the second item entered on the command-line was an integer, the following could be used to get that value from argv[1] and store it into an integer variable called numl (which would have been declared alrcady): sscanf (argv [1] "Vd", &nunl ); // / stores it in the variable called num it automatically converts it to an integer and If the third command-line argument was a string, the following could be used to store that value into a character array that was declared called word: sscanf (argv2 ord) no needed because "word' is an array