File: *manpages*, Node: who, Up: (dir) WHO(1) WHO(1) NAME who - show who is logged on SYNOPSIS who [-imqsuwHT] [--count] [--idle] [--heading] [--help] [--message] [--mesg] [--version] [--writable] [file] [am i] DESCRIPTION This documentation is no longer being maintained and may be inaccurate or incomplete. The Texinfo documentation is now the authoritative source. This manual page documents the GNU version of who. If given no non-option arguments, who prints the following information for each user currently logged on: login name terminal line login time remote hostname or X display If given one non-option argument, who uses that instead of /etc/utmp as the name of the file containing the record of users logged on. /etc/wtmp is commonly given as an argu- ment to who to look at who has previously logged on. If given two non-option arguments, who prints only the entry for the user running it (determined from its stan- dard input), preceded by the hostname. Traditionally, the two arguments given are `am i', as in `who am i'. OPTIONS -m Same as `who am i'. -q, --count Print only the login names and the number of users logged on. Overrides all other options. -s Ignored; for compatibility with other versions of who. -i, -u, --idle After the login time, print the number of hours and minutes that the user has been idle. `.' means the user was active in last minute. `old' means the user was idle for more than 24 hours. -H, --heading Print a line of column headings. -w, -T, --mesg, --message, --writable Like -s, plus after the login name print a charac- ter indicating the user's message status: FSF GNU Shell Utilities 1 WHO(1) WHO(1) + allowing write messages - disallowing write messages ? cannot find terminal device --help Print a usage message on standard output and exit successfully. --version Print version information on standard output then exit successfully. FSF GNU Shell Utilities 2