How to use fetch to finish the task "wget -qO - http://www.a.com/h_u/ip.php?u_hash=f9" ?

RouterOS Scripting
1

Hi,

I use the script “wget -qO - http://www.a.com/h_u/ip.php?u_hash=f9” to update my ip on tomato router.
Now can I finish it on ROS by fetch?
Does anyone transform this command to ROS by fetch?

thanks

2 
/tool fetch url="http://www.a.com/h_u/ip.php\?u_hash=f9" keep-result=no