Warning: main(/www/www/htdocs/style/globals.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/utilities/p/ps.html on line 1
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/globals.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/utilities/p/ps.html on line 1
Warning: main(/www/www/htdocs/style/header.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/utilities/p/ps.html on line 8
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/header.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/utilities/p/ps.html on line 8
Report process status (POSIX)
ps [-Aa] [-G grouplist] [-o format]...
[-p proclist] [-t termlist] [-U userlist]
QNX Neutrino, Microsoft Windows
- -A
- Print information for all accessible processes.
- -a
- Print information for all processes associated with terminals except
for process group leaders.
- -G grouplist
- Write information for processes whose real group ID is given in
grouplist.
You can delimit the group IDs with commas or spaces.
- -o format
- Write information according to the specifications given in
format.
If you specify more than one -o option, they're treated as a
concatenation of all their format arguments.
- -p proclist
- Print information only for processes whose process IDs are listed in
proclist.
You can delimit the process IDs with commas or spaces.
- -t termlist
- Print information only for processes associated with the terminals
listed in termlist
You can delimit the terminal identifiers with commas or spaces.
- -U userlist
- Print information only for processes whose real user ID or login name is
given in userlist.
You can delimit the user IDs with commas or spaces.
The ps utility prints information about processes, subject
to having the appropriate privilege to obtain information about those
processes. With no options, ps prints information
about processes associated with the current terminal. The output includes
the process ID, terminal name, cumulative execution time, and command name
of each process.
The options that use lists (-g, -p,
-t, -u) can list multiple items separated
by commas or white space, as long as all the items are contained
within a single command-line argument. If white space is used,
you'll probably need to quote the list when invoking ps
from the shell.
The initial set of processes selected by -a,
-A, or -d is intersected with the
processes selected by the -g, -p,
-t, or -u options, if any of the latter
are specified.
If none of -a, -A, or -d
is specified, ps behaves as though you specified
-u your_uid.
To control the content and format of output, you use the
-o format option, which takes any of the field descriptors
listed below. All of these field descriptors, with the exception of %%
and %a, are of the form:
The + forces right justification; the -
forces left justification. If neither + nor -
is specified, the default justification for the descriptor is used.
If no title is given for a field,
spaces are printed. The [ and ]
aren't part of the descriptor; they simply show the optional parts of the
descriptor.
The %a field descriptor has the form:
You can use the optional width for limiting
the length of what is printed for this field.
Any text included between the field descriptors is printed on all
lines, including the header line.
- %%
- A literal % character.
- %a
- The command with all its arguments as a string.
- %b
- The process that this process is blocked on.
- %c
- The name of the command (argv[0] value) as a string.
- %C
- The ratio of CPU time used (%x) to CPU
time available, expressed as a percentage.
- %d
- The current working directory of the process.
- %e
- The initial environment of the process.
- %f
- The flags of the process.
- %g
- The real group ID of the process.
- %G
- The effective group ID of the process.
- %p
- The decimal value of the process ID.
- %P
- The decimal value of the parent process ID.
- %n
- The decimal value of the process's nice value.
- %N
- The decimal value of the process's priority.
- %r
- The decimal value of the process group ID.
- %s
- The decimal value of the session ID.
- %S
- The process state of the process.
- %t
- In the POSIX locale, the elapsed wall clock time of the process
in the form:
[dd-]HH:MM:SS
The dd field is not shown if less than one day.
- %T
- In the POSIX locale, the relative start time of the process in the form:
The dd field gives the number of days before
the current date that have elapsed since the process started (not shown
if dd is less than one day).
- %u
- The real user ID of the process. If the user ID
is present in the /etc/passwd file, a textual user name
is printed; otherwise, a decimal numeric user ID
is printed.
- %U
- The effective user ID of the process (see %u).
- %x
- In the POSIX locale, the cumulative CPU time
of the process in the form:
The dd field is not shown if less than one day.
- %y
- If a controlling terminal is present, the name of the terminal, consisting
of the node ID followed by the basename of the device pathname.
- %z
- The size of the process in (virtual) memory in kilobytes, expressed as a
decimal integer. Shared code or segments are not accounted for.
Emulate the default output from a System V ps command:
ps -o '%+"PID"p %+"TTY"y %+"TIME"t %+"COMMAND"C'
- 0
- Successful completion.
- >0
- An error occurred.
pidin
Fine-Tuning Your System
in the Neutrino User's Guide
Warning: main(/www/www/htdocs/style/footer.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/utilities/p/ps.html on line 276
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/footer.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/utilities/p/ps.html on line 276