(Official) Console Documentation
perm
Add or remove player permissions.
Add or remove permissions.
perm -a -r -l [permission1 permission2 …]
-all – the command operates on all players. -a – add the specified permission(s). -r – remove the specified permission(s). -l – list the current players permissions. [permission1 permission2 …] – a list of permissions to add or remove (separated by a space).
Example: perm -l List all permissions for the current player.
perm -l -all List all permissions for all players.
perm -a creative fly Add the Creative and Fly permissions to the current player.
perm -r scripts Remove the Scripts permission from the current player.
perm -all -r map grief admin Remove the map, grief, admin permissions from all players.