#include <time.h>
#include <sys/time.h>

main(argc, argv)
int argc;
char* argv[];
{
	struct timeval st; /* starting time */
	struct timeval et; /* ending time */
	int i;
	long l;
	char command[256];

	gettimeofday(&st, 0);

	strcpy(command, "");
	for (i=1; i<argc; i++) {
		strcat(command, argv[i]);
		strcat(command, " ");
		}
	printf("executing command %s\n", command);
	system(command);
	gettimeofday(&et, 0);
	l=(et.tv_usec - st.tv_usec) + 1000000*(et.tv_sec-st.tv_sec);
	printf("execution time=%ld microseconds\n", l);
}