z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

printf
Related Information
echo, print
ps — Return the status of a process
Format
Description
Options
ps [–Aacdefjlm] [–G idlist] [–g grouplist] [–n name] [–o format] ... [–p proclist] [–s
idlist] [–t termlist] [–U|u uidlist]
ps displays status information about processes, and optionally, the threads running
under each process.
By default, for each process associated with the user’s terminal, ps will display the
process id (PID), TTY, processor time used (TIME), and name of the command
(COMM).
The –a, –A, and –e options can be used to show information associated with all
available or accessible processes on the system. However, these options can only
show information for those processes the user has appropriate privileges to access.
The –g, –G, –p, –s, –t, –u, and –U options can be used to select specific
processes by process id, terminal id, and user name.
The –f, –j, and –l options can be used to display additional status fields using
predefined formats. The –o format option allows the user to select specific status
fields and to define the format in which these fields are displayed.
ps will display information for each thread associated with a process when the –m
and/or –o THREAD options are used. Output lines for thread information
immediately follow the output line for the parent process. Since the default behavior
of ps displays process status fields only, to provide meaningful thread output, the
–o option is used to specify thread specific status fields. There are some conditions,
such as when the process is in a terminating or zombie state, where thread data
cannot be captured. In these cases, a single thread output line will be displayed
showing a ? in the thread output fields.
ps accepts several options. When a description says that ps lists “all processes”, it
means all the processes on the system, provided that you have appropriate
privileges.
The fields pcpu, nice, pri, addr, and wchan are unsupported and will always display
a dash.
–A Displays information on all available processes. You can specify –A, –a,
and –e in any combination; however, –a overrides both –A and –e.
–a Displays information on all processes associated with terminals. You can
specify –A, –a, and –e in any combination; however, –a overrides both –A
and –e.
–c Displays more detailed information about processes for the –f and –l
options. –c is accepted but not currently implemented.
–d Displays information for all processes except group leaders.
516 z/OS V1R9.0 UNIX System Services Command Reference