#include <stdio.h>
#include <unistd.h>
#include <errno.h>

int main(int argc, char *argv[]) {
	int err = execvp(argv[1], argv+1);
	printf("err = %d %d\n", err, errno);
	//if (errno == ENOENT) 
		//printf("non esiste\n");
	if (err == -1)
		perror("execerr");
}