SECTION./ACAT
READ/ACAT [cat_name] [lowno,hino]
	read ASCII Catalog entries
SECTION./COMM
READ/COMMANDS [proc]
	read commands from a procedure + store into command buffer
SECTION./DESC
READ/DESCR name [descr_list] [disp_flag]
	display descriptor values of frame or table 
SECTION./FCAT
READ/FCAT [cat_name] [lowno,hino]
	read fit file catalog entries
SECTION./FILE
READ/FILE file_id cbuf_key [maxrd]
        reads one line of an ASCII file
SECTION./HIST
READ/HISTOGRAM table column [bin [min [max]]]
	display statistics of table column
SECTION./ICAT
READ/ICAT [cat_name] [lowno,hino]
	read Image Catalog entries
SECTION./IMAG
READ/IMAGE frame_specs [pixel_specs] [hide_header_flag] 
	display image data values
SECTION./KEYW
READ/KEYWORD [key_list] [disp_flag] [since] [Midunit]
	display contents of keywords
SECTION./SETU
READ/SETUP setup
	read the contents of the variables related to a Setup
SECTION./TABL
READ/TABLE table [column_sel] [row_sel] [form]
	display table elements
SECTION./TCAT
READ/TCAT [cat_name] [lowno,hino]
	read Table Catalog entries