.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.48.5. .TH WHO "1" "August 2024" "GNU coreutils 9.5" "User Commands" .SH NAME who \- show who is logged on .SH SYNOPSIS .B who [\fI\,OPTION\/\fR]... [ \fI\,FILE | ARG1 ARG2 \/\fR] .SH DESCRIPTION .\" Add any additional description here .PP Print information about users who are currently logged in. .TP \fB\-a\fR, \fB\-\-all\fR same as \fB\-b\fR \fB\-d\fR \fB\-\-login\fR \fB\-p\fR \fB\-r\fR \fB\-t\fR \fB\-T\fR \fB\-u\fR .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\-T\fR, \fB\-w\fR, \fB\-\-mesg\fR add user's message status as +, \- or ? .TP \fB\-u\fR, \fB\-\-users\fR list users logged in .TP \fB\-\-message\fR same as \fB\-T\fR .TP \fB\-\-writable\fR same as \fB\-T\fR .TP \fB\-\-help\fR display this help and exit .TP \fB\-\-version\fR output version information and exit .PP If FILE is not specified, use \fI\,/var/run/utmp\/\fP. \fI\,/var/log/wtmp\/\fP as FILE is common. If ARG1 ARG2 given, \fB\-m\fR presumed: 'am i' or 'mom likes' are usual. .SH AUTHOR Written by Joseph Arceneaux, David MacKenzie, and Michael Stone. .SH "REPORTING BUGS" GNU coreutils online help: .br Report any translation bugs to .SH COPYRIGHT Copyright \(co 2024 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later . .br This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. .SH "SEE ALSO" Full documentation .br or available locally via: info \(aq(coreutils) who invocation\(aq