#include "ourhdr.h" int main(int argc, char *argv[]) { int i; char **ptr; extern char **environ; for (i = 0; i < argc; i++) /* echo all command-line args */ printf("argv[%d]: %s\n", i, argv[i]); for (ptr = environ; *ptr != 0; ptr++) /* and all env strings */ printf("%s\n", *ptr); exit(0); }