Currently I'm trying to create a system that only allows certain command block events to trigger once to each person. Rather than setting up a system at the spawn to set the starting value for the points objective for each new player to 0 I want to create a series of command blocks to check if the player's points value is less than a certain number (to prevent them from triggering it multiple times). I hope that it could also apply to undefined starting values, that way new players could still trigger it the first time as well.
I've come up with an unsuccessful solution
/testfor @a[score_points_min!=1]
and would appreciate any assistance with this predicament.