extern int free_main(int argc, char** argv);
extern int grep_main(int argc, char** argv);
extern int halt_main(int argc, char** argv);
+extern int head_main(int argc, char** argv);
extern int hostname_main(int argc, char** argv);
extern int init_main(int argc, char** argv);
extern int kill_main(int argc, char** argv);
extern int mt_main(int argc, char** argv);
extern int mv_main(int argc, char** argv);
extern int ping_main(int argc, char **argv);
+extern int poweroff_main(int argc, char **argv);
extern int printf_main(int argc, char** argv);
extern int ps_main(int argc, char** argv);
extern int pwd_main(int argc, char** argv);
extern int logger_main(int argc, char **argv);
extern int tar_main(int argc, char** argv);
extern int tail_main(int argc, char** argv);
+extern int tee_main(int argc, char** argv);
extern int touch_main(int argc, char** argv);
extern int tput_main(int argc, char** argv);
extern int true_main(int argc, char** argv);
extern void erase_mtab(const char * name);
extern int check_wildcard_match(const char* text, const char* pattern);
extern long getNum (const char *cp);
+extern pid_t findInitPid();
#if defined BB_MTAB