Linux speed limit script

#! /Bin/bash
Tc qdisc del dev eth2 root
Tc qdisc add dev eth2 root handle 2: htb
Tc class add dev eth2 parent 2: classid 2:1 htb rate 100 Mbit
I = 1;
While [$ I-lt 248]
Do
Tc class add dev eth2 parent 2:1 classid $ I htb rate 4000 kbit ceil 6000 kbit burst 15 k
Tc qdisc add dev eth2 parent 2: 2 $ I handle 2 $ I: sfq
Tc filter add dev eth2 parent 2: 0 protocol ip prio 4 u32 match ip dst 10.200.1. $ I flowid 2: 2 $ I
Tc filter add dev eth2 parent 2: 0 protocol ip prio 4 u32 match ip dst 10.200.2. $ I flowid 2: 2 $ I
Tc filter add dev eth2 parent 2: 0 protocol ip prio 4 u32 match ip dst 10.200.3. $ I flowid 2: 2 $ I
I = 'expr $ I + 1'
Done