gem install minecraft

mkdir ~/MinecraftServer
cd ~/MinecraftServer
minecraft

minecraft -h

!give <item> <quantity>       # Gives the user an <item>, the <quantity> 
                              # upper bound is 2560 unlike the Minecraft 
                              # default of 64.  Items can be specified by
                              # approximate name.
!giveall <item> <quantity>    # Gives all connected users an <item>.
!tp <target_user>             # Teleports the user to the <target_user>.
!tpall                        # Teleports all connected user to the user.
!nom                          # Give a golden apple the user.
!nomall                       # Give a golden apple to every connected user.
!kit <group>                  # Gives a kit to the user.
!kitall <group>               # Give a kit to every connected user.
!kitlist                      # Lists the available kits.
!addtimer <item> <frequency>  # Adds a timer to give <item> to the user ever <frequency> seconds.
!deltimer <item>              # Delete a timer associated with <item>.
!printtimer                   # Print timers of the user.
!printtime                    # Print the current counter time.
!list                         # List the connected users, notes ops.
!property <key>               # Check a server property by key.
!property                     # List server properties available.
!s <label> <command>          # Associates a command to a shortcut label for the user.
!s <label>                    # Runs the command with the associated label.
!shortcuts                    # Lists the users shortcuts.
!rules                        # Prints the server rules.
!uptime <user>                # Prints the uptime of the given user.
!uptime                       # Prints the uptime of the current user.
!help                         # Outputs the help contents.
!hop <user>                   # Give a user half-op privileges.
!dehop <user>                 # Remove a users half-op privileges.
!morning                      # Change time of day to morning.
!evening                      # Change time of day to evening.
!day                          # Change time of day to daytime.
!night                        # Change time of day to night.
!dawn                         # Change time of day to dawn.
!dusk                         # Change time of day to dusk.
!roulette                     # Kick a random person, person requesting has a higher chance.
!kickvote <user>              # Initiate or vote for a kickvote against a user.
!kickvote                     # Vote to kick the last initiated user.
!vote                         # Vote to kick the last initiated user.
!cancelvote <user>            # Cancel to kickvote on a user.
!points <user> <quantity>     # Give a user points.
!board <user>                 # Check a users points.
!board                        # View the leaderboard of points.
!om <noms>                    # Give golden apples equivalent to the number of noms.
!warptime                     # Prints the current time rate.
!warptime <rate>              # Adds <rate> seconds every ten seconds to time.
!stop                         # Stops all the users timers.
!welcome                      # Changes the welcome message during runtime.
!memo <user> <message>        # Leaves a memo for the user.
!disco                        # Turns time into a dancefloor.
!dnd                          # Toggles the users do-not-disturb status.
!disturb <user>               # An op can remove a user from the DND list.
!printdnd                     # Prints the list of do-not-disturbed users.
!todo                         # Prints the list of items todo.
!todo <item>                  # Adds a todo list item.
!finished <item>              # Removes an item from the todo list.