MPE/iX Shell and Utilities Reference Manual, Vol 1

cksum(1) MPE/iX Shell and Utilities cksum(1)
DIAGNOSTICS
Possible exit status values are:
0 Successful completion.
1 An error occurred.
Messages
Message: input file "filename": system error
Cause: See syserror(3).
Action: See syserror(3).
Message: Unknown option "–option"
Cause: You specified an option that is not valid for cksum.
Action: Check the DESCRIPTION section of this man page for a list of valid cksum
options
PORTABILITY
POSIX.2. x/OPEN Portability Guide 4.0.
All of the listed options are extensions to the
POSIX standard.
SEE ALSO
cmp(1), diff(1), ls(1), sum(1), wc(1)
MPE/iX NOTES
For information on how the current
MPE/iX implementation may affect the operation of this
utility, see Appendix A, MPE/iX Implementation Considerations.
1-106 Commands and Utilities