85 lines
2.0 KiB
Groff
85 lines
2.0 KiB
Groff
.\" -*-Nroff-*-
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.\"
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.TH W 1 "8 Dec 1993 " " " "Linux User's Manual"
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.SH NAME
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w \- Show who is logged on and what they are doing.
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.SH SYNOPSIS
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.B w \-
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.RB [ husfV ]
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.RI [ user ]
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.SH DESCRIPTION
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.B "w "
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displays information about the users currently on the machine,
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and their processes.
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The header shows, in this order, the current time,
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how long the system has been running,
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how many users are currently logged on,
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and the system load averages for the past 1, 5, and 15 minutes.
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.sp
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The following entries are displayed for each user:
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login name, the tty name, the remote host, login time, idle time, JCPU, PCPU,
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and the command line of their current process.
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.sp
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The JCPU time is the time used by all processes attached to the tty. It
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does not include past background jobs, but does include currently
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running background jobs.
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.sp
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The PCPU time is the time used by the current process, named in the "what"
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field.
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.PP
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.SH "COMMAND\-LINE OPTIONS"
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.TP 0.5i
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.B "\-h "
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Don't print the header.
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.TP 0.5i
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.B "\-u "
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Ignores the username while figuring out the current process and cpu
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times. To demonstrate this, do a "su" and do a "w" and a "w -u".
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.TP 0.5i
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.B "\-s "
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Use the short format.
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Don't print the login time, JCPU or PCPU times.
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.TP 0.5i
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.B "\-f "
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Toggle printing the
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.B from
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(remote hostname) field. The default as
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released is for the
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.B from
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field to not be printed, although your system administrator or
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distribution maintainer may have compiled a version in which the
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.B from
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field is shown by default.
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.TP 0.5i
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.B "\-V "
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Display version information.
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.TP 0.5i
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.B "user "
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Show information about the specified user only.
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.SH FILES
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.TP
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.I /etc/utmp
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information about who is currently logged on
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.TP
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.I /proc
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process information
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.PP
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.SH "SEE ALSO"
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.BR free (1),
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.BR ps (1),
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.BR top (1),
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.BR uptime (1),
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.BR utmp (5),
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.BR who (1)
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.SH AUTHORS
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.B w
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was re-written almost entirely by Charles Blake, based on the version by Larry
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Greenfield <greenfie@gauss.rutgers.edu> and Michael K. Johnson
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<johnsonm@redhat.com>.
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Please send bug reports to <albert@users.sf.net>
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