January 19, 1989

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CHECKSUM CONTROL FOR FILES UNDER MEDLEY
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If you encounter inexplicable problems shortly after you install Medley,
they may be due to files being corrupted.  We recommend that you verify the
checksums of your installed files.

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DESCRIPTION
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The script generates checksum files named FOO.check and compares them to
the released FOO.sum residing in the /checksumdir subdirectory.  The
checksum script reports inconsistent files, the correct checksum values for
the files, and an error message. The checksum of individual files can be
verified with the UNIX command "sum filename".

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COMMANDS
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ldechecksum [-cg] medleydir [ dir | dirgroup ]

	-c	Generates checksums for your installed files and compares
		them with correct values.  This is the default action.

	-g	Generates checksums for the  files specified.

	medleydir Name of the Medley installation directory. Usually its
		/usr/local/lde.

	dir	Any specific directory residing	under medleydir. Only
		relative pathnames with respect to medleydir are accepted.

	dirgroup The directory group, either all (the default) or lisp, 
		which includes the X/install.sunos3, X/install.sunos4,
		X/lisplibrary and X/lispsysouts directories.

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OUTPUT
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	As it begins checking each directory, the script prints a message
	in the form:

	Checking directory: /usr/local/lde/subdir


	Error and warning messages may be one of two forms: 

	< E > 32711 49 4045XLPSTREAM.DFASL 

	indicates that file 4045XLPSTREAM.DFASL is erroneous or does not
	reside in the directory. The correct checksum of 32711, together
	with the size (49kbytes) of the file, are shown.

	< W > /usr/local/lde/fonts/display/chinese : Directory not installed 

	indicates that Chinese fonts were not installed or were removed
	after Medley was installed.

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EXAMPLES:
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	prompt% ldechecksum /usr/local/lde

	All files in the installed Medley directories in /usr/local/lde are
	checked.

	prompt% ldechecksum /usr/local/somedir/lde lisp 

	This example checks all files in:
	/usr/local/somedir/lde/install.sunos3
	/usr/local/somedir/lde/install.sunos4
	/usr/local/somedir/lde/lisplibrary 
	/usr/local/somedir/lde/lispsysouts 


	prompt% cd /usr/local/lde
	prompt% ldechecksum  -c . fonts/display	

	This example checks only the display font directories.  The period
	(.) is used because you are positioned under the current Medley
	installation directory.