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tmp_file=/tmp/$$.stack.tmp
while true ; do
  rm /tmp/bjarneskvms*.stack.tmp
  for a in $(seq -w 01 07);
    do echo compute$a  >> /tmp/bjarneskvms$tmp_file
    openstack server list --all --host compute$a >> /tmp/bjarneskvms$tmp_file
  done
  clear
  cat /tmp/bjarneskvms
  sleep rm $tmp_file
  sleep 1
done