Shell Programming and Scripting

process1
process2
process3

foreach proccx ( process1 process2 process3 )
  initvar1,2,3 = ps -elf |grep $proccx |awk '{print $10}'
end

foreach proccx ( process1 process2 process3 )
  set curvar1,2,3 = ps -elf |grep process1 |awk {print $10}'
  if $curvar1 > $initvar1 * 2 , do something.
end

sleep 5
end

#!/bin/bash
while true
do 
    while read pid mem
    do
       [ -z "${orig[pid]}" ] && orig[pid]=$mem
       if [ $((orig[pid]*2)) -lt $mem ]
       then
           echo "$pid has grown from ${orig[pid]} to $mem"
       fi
    done  < <(ps -elf | awk '/[p]rocess1|[p]rocess2|[p]rocess3/{print $4 " " $10}')
    sleep 5
done