COMMAND NAME
	extract -- output reduced instance of the current information
		   structure
SYNOPSIS
	extract [filename]
DESCRIPTION - USAGE
The extract command will write into the file specified by "filename" a 
reduced version of the current error information structure.  This 
reduced instance is the structure used directly by the lister.  If the
argument filename is ommitted, the user is queried for a valid file name.
The default name for the file is the name of the last file read or written
with the extension ".eis".
EXAMPLES
	extract errors.ext
