FTB

FTBLib:

/reload - Reloads configs for server and clients
/ftb_worldID - Prints current world UUID
/ftb_mode list - Prints a list of available modes
/ftb_mode get - Prints current world mode
/ftb_mode set [mode] - Sets world mode to [mode]
/edit_config <ID> [group] [entry] [value] - Opens config Gui, if only 1st argument is given
/set_item_name [Name...] - Sets item display name for held item, like an Anvil
/ftb_notify <player|@a> [notification Json...] - Sends a popup notification to player

FTBUtilities:

/back - Teleports player to his last death location
/spawn - Teleports player to Overworld spawn
/tpl [player] - Teleports to [player] if he is online or last location if offline
/warp [ID] - Teleports player to server set warp [ID]

/admin invsee [player] - If player is online, opens his inventory. Armor on left top row, Baubles on right top row.
/admin setwarp [ID] - Sets warp [ID] to current position of player
/admin delwarp [ID] - Deletes warp [ID]
/admin unclaim - Unclaims current chunk (GUI in future)
/admin unclaim_all <player | @a> - Unclaims all chunks from all dimensions
/admin loaded_chunks - Opens a "guide" that shows all loaded chunks (from all mods) in all dimensions

/admin worldborder on|off - Enables/disables world border
/admin worldborder get [dim] - Prints world border size for dimension [dim]
/admin worldborder set [dim] [radius] - Sets world border radius for dimension [dim]
/admin worldborder center - Sets world border center to current player's locatoin
/admin worldborder center [x] [z] - Sets world border center to x, z

/admin player saveinv|loadinv <player|@a> - Saves/loads player inventory to/from "/local/ftbu/playerinvs/"
/admin player saveinv|loadinv <player> [custom name] - Saves/loads player inventory to/from "/local/ftbu/playerinvs/custom/"