+
+case $1 in
+ push)
+ new_host=$2
+ bbk_args="-s $old_host"
+ new_shell="ssh $new_host"
+ old_host=$HOSTNAME
+ ;;
+ pull)
+ old_host=$2
+ bbk_args="-t $new_host"
+ bbk_args="-s $old_host"
+ new_host=$HOSTNAME
+ old_shell="ssh $old_host"
+ ;;
+ *)
+ err invalid first argument
+ exit 1
+ ;;
+esac
+
+