hg help - show help for a given topic or a help overview

       With no arguments, print a list of commands with short help messages.

       Given a topic, extension, or command name, print help for that topic.

       Returns 0 if successful.

       hg help - show help for a given topic or a help overview

-e,--extension
              show only help for extensions

       -c,--command
              show only help for commands

       -k,--keyword
              show topics matching keyword

       -s,--system<PLATFORM[+]>
              show help for specific platform(s)

              [+] marked option can be specified multiple times

                                                                                                        HG(HELP)

       hg help [-eck] [-s PLATFORM] [TOPIC]