How to make commands in minecraft

/advancement <action> <player> <mode> <advancement> [criterion]Gives the player an advancement./attributeChanges an attribute of the creature./bossbarShows the player a boss bar./clear [player] [item] [amount]Removes items from the player's inventory./dataChanges the properties of a creature./effectGives the creature a status effect./enchant <player> <enchantment> <level>Gives an enchantment to the item the player is holding./executeGets a creature /item to execute a command and /or check conditions./experienceGives or takes experience points from the player./xpGives or takes experience points from the player./gamemode <mode> <player>Changes the game mode (0/1/2/3) of the player./give <player> <Item> [Amount]Gives items to the player's inventory./item (from 1.17)Replaces, modifies or copies items in the creature's inventory./kill [player/creature]Kills the creature immediately./loot <ta

how to add commands to your minecraft server

how to add custom commands to minecraft server aternos