Available HELP topics (some of them are only accessible to IRC operators):

ACCEPT          ADMIN           AWAY            CAPAB
CHALLENGE       CLOSE           CMODE           CONNECT
DIE             DLINE           EOB             ERROR
ETRACE          GLINE           GUNGLINE        HASH
HELP            INFO            INVITE          ISON
JOIN            KICK            KILL            KLINE
KNOCK           LINKS           LIST            LOCOPS
LUSERS          MAP             MODULE          MOTD
NAMES           NICK            NOTICE          OPER
PART            PASS            PING            PONG
POST            PRIVMSG         QUIT            REHASH
RESTART         RESV            SERVER          SET
SJOIN           SQUIT           STATS           SVINFO
TIME            TOPIC           TRACE           UMODE
UNDLINE         UNKLINE         UNRESV          UNXLINE
USER            USERHOST        VERSION         WALLOPS
WHO             WHOIS           WHOWAS          XLINE
