rwho
—
who is logged in on local machines
The rwho
command produces output similar to
who(1), but for all machines on the
local network. If no report has been received from a machine for 11 minutes
then rwho
assumes the machine is down, and does not
report the users last known to be logged into that machine.
If a user hasn't typed to the system for a minute or more, then
rwho
reports this idle time.
-a
- Include all users. By default, if a user hasn't typed to the system for an
hour or more, then the user will be omitted from the output.
-H
- Write column headings above the regular output.
-q
- “Quick mode”: List only the names and the number of users
currently logged on. When this option is used, all other options are
ignored.
- /var/rwho/whod.*
- information about other machines
The rwho
command appeared in
4.3BSD.
This is unwieldy when the number of machines on the local net is large.