13 int run(const char *p, char *const argv[]);
14 int harvest_zombies(int pid);
15 int run_piped(const char *cmd, char *const argv[], int *readfd, int *writefd);
16 int run_piped_stream(const char *cmd, char *const argv[],
17 FILE **readf, FILE **writef);
19 extern int child_count;