MPE/iX Shell and Utilities Reference Manual, Vol 2

who(1) MPE/iX Shell and Utilities who(1)
–t displays all time change entries (both old and new time).
–u displays only entries associated with logged-in users. who enables this option when
you do not provide any options on the command line.
–w displays the terminal state; this indicates whether or not the terminal is writable.
DIAGNOSTICS
Possible exit status values are:
0 Successful completion.
1 Failure because of an invalid command line option, or because of too many command
line arguments.
Messages
The who utility produces no error messages.
PORTABILITY
POSIX.2. x/OPEN Portability Guide 4.0.
The –A, –a, –b, –d, –i, –l, –p, –r, –s, –t, –w, and am i options are extensions to the
PO-
SIX standard.
MPE/iX NOTES
The who command is currently implemented on MPE/iX as a front-end to the MPE/iX CI
com-
mand SHOWJOB. The /etc/utmp and /etc/wtmp files are not currently implemented.
who maps the information produced by SHOWJOB into the format required by who. In many
cases, SHOWJOB does not provide the information that an option is supposed to display. This
is detailed as follows:
–b no corresponding information
–d no corresponding information
–i idle time is not available so old is printed
–l no corresponding information
–p no corresponding information
–r no corresponding information
–T write access cannot be determined so ? is always displayed
–t no corresponding information
Finally, who displays login time information exactly as provided by SHOWJOB and rather than
displaying the users’
PID, it displays the session ID. When you use who -u, the last field
displayed is the session ID.
For more information on how the current MPE/iX implementation may affect the operation of
this utility, see Appendix A, MPE/iX Implementation Considerations.
Commands and Utilities 1-701