Shell Programming and Scripting

i need a script which sends a mail when cpu is heavily loaded, for example ,

following is the output of the mpstat command,

CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl
160 38 0 156 72 1 235 70 234 122 0 88 17 7 0 76
161 35 0 145 226 172 78 62 263 108 0 262 15 7 0 77
162 35 0 180 110 65 31 74 247 95 0 227 15 6 0 79
163 34 0 119 55 2 248 76 219 88 0 195 15 5 0 80
192 39 0 150 37 196 261 76 105 245 0 102 18 5 0 77
193 34 0 187 64 65 211 79 200 83 0 181 15 5 0 80
194 35 0 132 51 1 200 88 193 81 0 186 15 5 0 80
195 34 0 134 182 1 180 88 185 79 0 161 14 4 0 81


if system idl percentage is less than 10 % , it should check which process is using more cpu using prstat command and send a mail indicating process which are consuming more resourses....

What have you tried so far..? This pseudo code might help you..

Code:

idle=`mpstat | awk '{print $10}' | tail -1`
if [$idle -lt 10]; then
echo "Warning"
echo "Further processing here"
else
echo "you are good to go"
fi

Please note : This is untested....