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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT | FILES | SEE ALSO | AUTHORS | REPORTING BUGS | COLOPHON |
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W(1) User Commands W(1)
w - Show who is logged on and what they are doing.
w [option ...] [user]
w displays information about the users currently on the machine,
and their processes. The header shows, in this order, the
current time, how long the system has been running, how many
users are currently logged on, and the system load averages for
the past 1, 5, and 15 minutes.
The following entries are displayed for each user: login name,
the tty name, the remote host, login time, idle time, JCPU, PCPU,
and the command line of their current process.
The JCPU time is the time used by all processes attached to the
tty. It does not include past background jobs, but does include
currently running background jobs.
The PCPU time is the time used by the current process, named in
the "what" field.
-c, --container
show the container uptime instead of system uptime in the
header.
-h, --no-header
Don't print the header.
-u, --no-current
Ignores the username while figuring out the current
process and cpu times. To demonstrate this, do a su and
do a w and a w -u.
-s, --short
Use the short format. Don't print the login time, JCPU or
PCPU times.
-f, --from
Toggle printing the from (remote hostname) field. The
default as released is for the from field to not be
printed, although your system administrator or
distribution maintainer may have compiled a version in
which the from field is shown by default.
--help Display help text and exit.
-i, --ip-addr
Display IP address instead of hostname for from field.
-p, --pids
Display pid of the login process/the "what" process in the
"what" field.
-V, --version
Display version information.
-o, --old-style
Old style output. Prints blank space for idle times less
than one minute.
user Show information about the specified user only.
PROCPS_CONTAINER
If $PROCPS_CONTAINER is set, then w behaves as if the
--container option has been given.
PROCPS_USERLEN
Override the default width of the username column.
Defaults to 8.
PROCPS_FROMLEN
Override the default width of the from column. Defaults
to 16.
/var/run/utmp
information about who is currently logged on
/proc process information
free(1), ps(1), top(1), uptime(1), utmp(5), who(1)
w was re-written almost entirely by Charles Blake, based on the
version by Larry Greenfield ⟨[email protected]⟩ and
Michael K. Johnson ⟨[email protected]⟩.
Please send bug reports to ⟨[email protected]⟩.
This page is part of the procps-ng (/proc filesystem utilities)
project. Information about the project can be found at
⟨https://gitlab.com/procps-ng/procps⟩. If you have a bug report
for this manual page, see
⟨https://gitlab.com/procps-ng/procps/blob/master/Documentation/bugs.md⟩.
This page was obtained from the project's upstream Git repository
⟨https://gitlab.com/procps-ng/procps.git⟩ on 2024-06-14. (At
that time, the date of the most recent commit that was found in
the repository was 2024-06-04.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
procps-ng 2024-02-08 W(1)
Pages that refer to this page: tload(1), top(1), uptime(1), utmpdump(1)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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