bpstat usage.

Usage: bpstat [options] [nodes ...]
  -h,--help     Display this message and exit.
  -v,--version  Display version information and exit.

 The nodes argument is a comma delimited list of the following:
   Single node numbers - "4"    means node number 4
   Node ranges         - "5-8"  means node numbers 5,6,7,8
   Node classes        - "allX" means all slave nodes with status X
                         "all"  means all slave nodes
 More than one nodes argument can be given.
 Valid node states are:
        down    boot    error   unavailable     up

 Node list display flags:
  -c,--compact      Print compacted listing of nodes. (default)
  -l,--long         Print long listing of nodes.
  -a,--address      Print node addresses.
  -s,--status       Print node status.
  -n,--number       Print node numbers.
  -t,--total        Print total number of nodes.

 Node list sorting flags:
  -R,--sort-reverse Reverse sort order.
  -N,--sort-number  Sort by node number.
  -S,--sort-status  Sort by node status.
  -O,--keep-order   Don't sort node list.

 Misc options:
  -U,--update   Continuously update status
  -A hostname   Print the node number that corresponds to a
                host name or IP address.
  -p            Display process state.
  -P            Eat "ps" output and augment. (doesnt work well.)