Why does this skript not work?

[Raga]

I modified a skript that someone posted about a year ago on here due to it being obsolete and not working anymore, but now it doesn't work at all and I'm unable to figure out why.

command dupe <int=1>:
    aliases: d
    trigger:
        give (item amount of player's tool * 2 arg-int times) to player

The skript is basically meant to be a /dupe command, like a lot of popular servers, and I try to make it so not only can you /dupe but you can do like /dupe 4 and it'll *2 your item 4 times instead of just *2ing once with /dupe.

[Lapzzo]

command /dupe <number>
	aliases: /d
	trigger:
  		loop %arg-1% times:
			set {dupe::%player's uuid%} to player's held item
			give player 1 of {dupe::%player's uuid%} to player

Like this?

[NotKaizo]

2 hours ago, Lapzzo said:

command /dupe <number>
	aliases: /d
	trigger:
  		loop %arg-1% times:
			set {dupe::%player's uuid%} to player's held item
			give player 1 of {dupe::%player's uuid%} to player

Like this?

Uhm, don't use % if its not in a string (Line 4). Don't use global variables for that (Use local). Last line has a wrong syntax. And lastly, I'm pretty sure that isn't what he said he wants.
 

command /dupe [<number>]:
	aliases: /d
	trigger:
  		loop arg-1 times:
  			give (1 * 2) of tool to player
  
# Not sure if this is what you want but if I didn't read wrongly, it should be what you needed.