Lets you see or change the priority of one or more tasks.
If you don't provide a new priority it will show you the priority of the tasks you give.
Priorities can be numeric (1-5 with 5 being highest), or: lowest, low, normal, high, highest. You may also use the braindump-like priorities: --, -, +, ++, !, or !!.
See also help context if you're wondering how the last example works!
Examples: