#!/bin/bash

[ -z $1 ]||[ -z $2 ] && {
echo
echo "Syntax:  after <process_to_watch> <command>"
echo
exit
}

fnord=`ps ax`
count=1

until [ $count -eq 0 ]
do
    fnord=`ps ax`
    count=$(grep -c $1 $fnord)
    sleep 1
done

$2