else

printf("\nFile opened ");

}
fseek(fp, 0, 2); /* file pointer at the end of file */

size = ftell(fp); /* take a position of file
pointer un size variable */ printf("The
size of given file is : %d\n", size);

fclose(fp);

b) Explain the concept of Command Line Argument with the help of an example.

Command Line Argument

Command line argument is a parameter supplied to the program when it is
invoked. Command line argument is an important concept in C programming. It
is mostly used when you need to control your program from outside. command
line arguments are passed to main() method.

Syntax:

int main( int argc, char *argv[])

Here arge counts the number of arguments on the command line and argy[ |
is a pointer array which holds pointers of type char which points to the
arguments passed to the program.

Example for Command Line Argument

#include #include
int main(int argc,
char "ദ്വി )

{

int i; if( argc
>=2)
{

printf("The
arguments
supplied are:\n");
for(i=1;i< argc;i++)

{
printf("%s\t" argv[i]);

}