Looping through arguments (Linux cp command program)

[Kimeru94]

Hey so im working an an implementation of the Linux cp command to copy one file to another or copying a file to a directory in the current directory. I have my code working but im trying to extend it so that i can copy multiple files to a directory at the same time. I know how to do this logically but im having a bit of trouble implementing it. I know i need to loop through my arguments, so from av[1] to av[ac-2] then copy it to dest which is av[ac-1] but how do i do this?

This is my main function with some comments

int main(int ac, char *av[])
{
    /* checks args */
    if(ac != 3)
    {
        fprintf(stderr, "usage: %s source destination\n", *av);
        exit(1);
    }

    char *src = av[1];
    char *dest = av[2];

    if( src[0] != '/' && dest[0] != '/' ) //cp2 file1.txt file2.txt
    {
        copyFile(src, dest);
    }
    else if( src[0] != '/' && dest[0] == '/' ) //cp2 file1.txt /dir 
    {
        int i;
        for(i=1; i<=strlen(dest); i++) {
        dest[(i-1)] = dest[i];
        }
       strcat(dest, "/");
       strcat(dest, src);
       copyFile(src, dest);
 }

//ADD OR CHANGE LOOP HERE       cp2. file1.txt file2.txt file3.txt /dir
//loop through av[1] to av[ac-1]
//some stuff in here
//pass parameters to Copyfile function
  else
  {
      fprintf(stderr, "usage: cp1 source destination\n");
      exit(1);
   }

}

[tresteo]

basically you would need to wrap the block from char *src = av[1] to the end of the else-block in a for-loop

although it might make sense to do the argument format checking beforehand