Can't use variable for vlan selection during route domain creation?

I have to create several route demain and associate 2 vlans per route domain with tmsh script.

- I try it making a for loop for my total number of route domain to create.

- I select the right partition (successfully created previously)

- I create my route-domain and want to select a vlan previously created. My vlans are incremented and their name contain a number. I want to be able to use this incrementation to select my vlans for route-domain creation. BUT, it seems to be impossible to use variable in vlan name, I have the following message error :

pipo.tcl: script failed to complete:

can't eval proc: "script::run"

"vsys$x-vlan" unexpected argument

while executing

"tmsh::create net route-domain $numrd vlans add { vsys$x-vlan }"

(procedure "script::run" line 42)

invoked from within

"script::run" line:1

script did not successfully complete, status:1

- Here is an extract of my script :

set usercount 10

set numrd 12

for {set x 1} {$x<=$usercount} {incr x} {

tmsh::modify cli admin-partitions query-partitions all update-partition fce-vsys$x

tmsh::create net route-domain $numrd vlans add { vsys$x-vlan }

incr numrd

}

}

tmsh::modify cli admin-partitions query-partitions all update-partition Common

- I tried without {}, no success. Somebody have an Idea?

Thanks!