When I execute the following:
plugout_drive -com "RESCAN_THIS" -quit

if there are, indeed, new datasets waiting to be found, AFNI crashes with the following message:

perlman> plugout_drive -com "RESCAN_THIS" -quit
PO: plugout connection from host 127.0.0.1
PO: plugout connection name is ManOfLaMancha

Fatal Signal 11 (SIGSEGV) received
MCW_popup_message
AFNI_rescan_CB
AFNI_rescan_controller
AFNI_driver
AFNI:main
Bottom of Debug Stack
** AFNI version = AFNI_2006_12_22_0933 Compile date = Feb 6 2007
** Program Abort **
** AFNI data channel aborted!


Now, I understand that plugout_drive is deprecated technology, and the new thing is NIML. But I'm not aware of any shell-scriptable equivalent of "plugout_drive" to allow me to send commands using NIML from a shell script.

So, I guess I'm looking for either of two kinds of answers:
1. how to fix the crash I'm experiencing, or
2. how to use NIML straightforwardly instead.

This is part of a simple batch script which does ongoing processing, with user inspection at intermediate steps. I can work around this problem by simply re-launching AFNI each time, but that wastes a bunch of extra seconds... :)

Thanks!
-dave