local prefix = ";" -- put prefix
local cmdName = "kill" --input cmd name

for i,v in pairs(game.Players:GetPlayers()) do
local args= {
    [1] =  prefix..cmdName.." "..v.Name
}

game:GetService("ReplicatedStorage"):WaitForChild("HDAdminClient"):WaitForChild("Signals"):WaitForChild("RequestCommand"):InvokeServer(unpack(args))
wait(0.1)
end