What exactly does "/scoreboard @a <obj1> = @a <obj2>" do?

What exactly does "/scoreboard @a <obj1> = @a <obj2>" do? - To Do List Procrastination Quote

I'm developing a multiplayer minigame, but haven't been able to get any of my friends to help me on testing yet. I need to set EVERY players internalCash score to their cash score, but cannot use /execute, since it needs to run for non-op players.

It would be INCREDIBLY elegant if I could simply use

/scoreboard players operation @a internalCash = @a cash

but it doesn't seem to work properly with @e, which scares me. Could someone please tell me if I need to develop a clever workaround for this, or if this will do.

edit Oops! Kinda need the "players operation " part. :P






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High Performance Computer Architecture - Scoreboarding Example




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