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.TH WHO 1 "2026-09-01"
.SH NAME
who \- Print information about users who are currently logged in.
.SH SYNOPSIS
\fBwho\fR [OPTION]... [ FILE | ARG1 ARG2 ]
.SH DESCRIPTION
Print information about users who are currently logged in.
.SH OPTIONS
.TP
\fB\-a\fR, \fB\-\-all\fR
same as \-b \-d \-\-login \-p \-r \-t \-T \-u
.TP
\fB\-b\fR, \fB\-\-boot\fR
time of last system boot
.TP
\fB\-d\fR, \fB\-\-dead\fR
print dead processes
.TP
\fB\-H\fR, \fB\-\-heading\fR
print line of column headings
.TP
\fB\-l\fR, \fB\-\-login\fR
print system login processes
.TP
\fB\-\-lookup\fR
attempt to canonicalize hostnames via DNS
.TP
\fB\-m\fR
only hostname and user associated with stdin
.TP
\fB\-p\fR, \fB\-\-process\fR
print active processes spawned by init
.TP
\fB\-q\fR, \fB\-\-count\fR
all login names and number of users logged on
.TP
\fB\-r\fR, \fB\-\-runlevel\fR
print current runlevel
.TP
\fB\-s\fR, \fB\-\-short\fR
print only name, line, and time (default)
.TP
\fB\-t\fR, \fB\-\-time\fR
print last system clock change
.TP
\fB\-u\fR, \fB\-\-users\fR
list users logged in
.TP
\fB\-T\fR, \fB\-\-mesg\fR
add user\*(Aqs message status as +, \- or ?
.TP
\fB\-h\fR, \fB\-\-help\fR
Print help
.TP
\fB\-V\fR, \fB\-\-version\fR
Print version
.TP
[\fIFILE\fR]

.SH VERSION
v(uutils coreutils) 0.11.0