DSKSIZ is a program to report how much disk you are using and what your
disk allocation is.  The format of the command is:

	DSKSIZ <programmer name><switches>

where the programmer name is assumed to be your login name if you don't
specify one.  The programmer name may optionally be preceded by a device
name.  If you specify "verbose" mode (via the /V switch), the program
first asks you if you wish to save the printed output in a file called
PURGE.LST in your aliased area.  Next it types out (and optionally writes
in PURGE.LST) your allocation and the size of all your file directories
and the size of the files you are using on the area [2,2].  Finally, it
tells you whether you are under allocation or not and by how much.  If you
are over allocation, it asks you if you wish to write the file PURDAT with
the names of the files that the purger would purge.

The following switches may be typed anywhere after the command DSKSIZ:

/Q	suppress asking questions about output files (this is the default)
/V	opposite of /Q (verbose), allows saving typed output in PURGE.LST,
	and/or file purge list in PURDAT
/F	this inhibits most of the typeout ("fast" mode), providing just
	a summary of disk usage by the given user, instead of breaking
	it down by separate projects
/A	this causes the file PURDAT to be written with All of the given
	user's files listed in the order in which they would be purged,
	but with a special line in the middle indicating which files are
	safe from the purger at the current moment.  Since this switch
	forces the writing of the PURDAT file, the user is not even asked
	whether or not that file should be written.

A typical line of DSKSIZ output is in the following format:

    [PRJ,PRG]  n Files.  t T.  w DW.  p%  Date

This means that disk area PRJ,PRG has n files occupying t disk tracks and
w disk words (each track is 2334. words) with a storage efficiency of p%.
Date is the date of the most recently written file in the area.