psbook version (return code: 0)
Wrote 0 pages, 0 bytes
psbook -HELP (return code: 1)
psbook: invalid option -- '-'
psbook release 1 patchlevel 17
Copyright (C) Angus J. C. Duggan, 1991-1995. See file LICENSE for details.
Usage: psbook [-q] [-s<signature>] [infile [outfile]]
<signature> must be positive and divisible by 4