.WAIT FOR DISAPPEARANCE OF FILE: PIC001
[Enter name of file which you want to wait for. The file may be a non-SPIDER file,
a SPIDER image file, an image in a SPIDER image stack,
an inline SPIDER "file", an image in an inline SPIDER
image stack "file", or any other file. If the file
exists, the system will query existence until it
disappears or till the maximum wait time has been exceeded.
.DELAY INTERVAL AND MAXIMUM WAIT: 1,360000
[Specify the seconds for delay between queries and the
maximum overall wait time. The default values are 1 second
delay between queries for a maximum wait of 9999999 seconds.