Htop의 기쁨

oci_screen () {
  for region ad in ${(kv)OCI_AD}; do
    for id in {1..$ad}; do
      local host=$OCI_HOST_PREFIX-$id.$region
      screen -X screen pty -d pty-driver.pl -- "$SHELL" -ic \
             "_bcs_title :$host: $@; ssh -t $host $SHELL -ic '\"sudo -Es $@\"'"
    done
  done