Examining data

HIST -- Produce histogram of data value distribution in an image
FIGINFO -- Describes the contents of a Figaro data file
FITSKEYS -- List the FITS keywords in a data file
ICUR -- Inspect an image with cursor
IGCUR -- Use cursor to show x, y and data values
ILIST -- List the data in an image (or spectrum)
ISTAT -- Provides some statistics about an image (max, min etc.)