[VECTOR\]WAIT [Task_name]
Place the current program in a wait state until the specified Task
(started by command RUN) terminates. By default, the last started Task
is used. WAIT * waits until all tasks complete. Waiting can be
interrupted by pressing ^C.
It may be used to synchronize complex procedures where the result of
some task is used as input by others. For batch jobs sent through
command SUBMIT, this synchronization is normally ensured by the job
limit of the GILDAS_BATCH batch queue.