SECTION./ACAT
SHOW/ACAT [cat_name] [display_flag]
	show no. of entries in an ASCII\ file catalog
SECTION./BACK_MIDAS
SHOW/BACK_MIDAS unit [disp_option]
	show info related to background MIDAS sessions
SECTION./CHAN
SHOW/CHANNEL [chanl]
	show info related to ImageDisplay channel
SECTION./CODE
SHOW/CODE command_string [option]
	display the procedure which implements the command_string
SECTION./COMM
SHOW/COMMAND [comnd/qualif]
	display MIDAS\ commands
SECTION./CONTEXT
SHOW/CONTEXT [name]
	show enabled contexts
SECTION./DEFA
SHOW/DEFAULTS
	display all special defaults
SECTION./DESC
SHOW/DESCR frame [descr_list] [flag]
	show existing descriptors with name, type and size 
SECTION./DISP
SHOW/DISPLAY [option]
	show current status of ImageDisplay + Graphics
SECTION./FCAT
SHOW/FCAT [cat_name] [display_flag]
	show no. of entries in a fit file catalog
SECTION./GRAPHICS
SHOW/GRAPHICS device_name
	show the setup parameters for plotting
SECTION./ICAT
SHOW/ICAT [cat_name] [display_flag]
	show no. of entries in an image catalog
SECTION./KEYW
SHOW/KEYWORD [keyword]
	display contents of keyword data base
SECTION./TABL
SHOW/TABLE table
	display table parameters
SECTION./TCAT
SHOW/TCAT [cat_name] [display_flag]
	show no. of entries in a table catalog