h2ph(1) h2xs(1) halt(8) hash(3) hasmntopt(3) hcreate(3) hd(4) hdestroy(3) hdparm(8) head(1) header) herror(3) hesiod(3) hexdump(1) hier(7) hipstopgm(1) host(1) hostname(1) hostname(7) hosts_access(3) hosts_access(5) hosts_options(5) hpcdtoppm(1) hpftodit(1) hsearch(3) htdigest(1) htonl(3) htons(3) htpasswd(1) httpd(8) hwclock(8) hypot(3)