The aforementioned command-line options and others that deal with scheduling in Vortex are summarized below:
-listsched or -ls
Summarizes currently-scheduled scripts.-LS
Print current schedule information in greater detail.-noeng
Do not translate vCalendar-syntax schedules to
pseudo-English when listing. Normally this is done for
readability, but the actual internally-stored syntax may be
printed with this option.-sched schedule
Schedule the script given on the command line with the given
schedule. This schedule is distinct from any given by
<SCHEDULE> tags in the script. schedule may be
"off" to unschedule a previous -sched for this
script, or "all-off" to unschedule both -sched
and <SCHEDULE> tags for this script.-start date
Specify a START date for the given -sched schedule.-wipesched
Wipe the schedule table: remove all schedules for all scripts.
For other command-line options to Vortex, see here and here.