<SOMETHING ELSE AT START OF SCRIPT>

cmd='while true;
do
    ps aux | head;
    sleep 1;
done > $FILE'

ssh root@$SERVER $cmd &
...
...
<SOME OTHER TASKS>
...
...
( at the end of this script, how to kill the above snippet executing in remote server)
[ kindly note i dont want to wait as the while loop is infinite ]

cmd='while [ -r /tmp/somefile];
do
  # stuff
done > $FILE'

ssh root@$SERVER touch /tmp/somefile
ssh root@$SERVER $cmd &
# do other stuff
ssh root@$SERVER rm -f /tmp/somefile

kill $!

CTRL+Z
fg
CTRL+C

jobs
kill %jobspec

whois=`w|grep $user|awk '{print $2}'`;user=root; ssh $user@server -C "ps auwx|grep $whois|awk '{print $2}'"

whois=`w|grep $user|awk '{print $2}'`;user=root; ssh $user@server -C "ps auwx|grep $whois|awk '{print $2}'|xargs kill -9  "


 whois=`w|grep $user|awk '{print $2}'`;user=root; ssh $user@server -C "ps auwx|grep $whois|awk '{print $2}'|awk '{print "kill -9 " $1}'|/bin/sh "