FIXHEADER

	VICKI W. WOOLF 
	PROGRAM OF COMPUTER GRAPHICS - CORNELL UNIVERSITY
	120 RAND HALL   ITHACA    NEW YORK   14853  (607) 257-6444
	
	The FIXHEADER program can be used to display the virtual or
	logical data blocks or the file header blocks.  It can also
	be used to alter the EOF marker of a file.
	Program accepts either a filename,logical name or file id (octal)
	as input.  The following general information is displayed.
		file name
		file id and sequence numbers
		number of used and allocated blocks.
		first free byte number in last block used.
		owner uic.
		virtual to logical block mapping information.
	The user has the following options:
		G - Display general information.
		? - Display list of commands.
		M - Display list of map pointers.
		V - Display data block specified by virtual block number.
		L - Display data block specified by logical block number.
		H - Display file header block specified by block number.
		C - Display and change eof marker.
		W - Write changes back to disk.
		N - Enter a new file.
		E - Exit.

	The orginal purpose of the utility was to patch 0./non0. files.

	To build:
		Use FIXHEADER.COM
		      or
		$FOR FIXHEADER
		$MAC/OBJ=FIXHEADM FIXHEADER
		$LINK FIXHEADER,FIXHEADM


	To use:
		Either		$RUN FILEINFO