.\" @(#)who.1 6.1 (Berkeley) %G%
who \- who is on the system
lists the login name, terminal name, and login time
for each current UNIX user.
file to obtain its information.
If a file is given, that file is examined.
Typically the given file will be /usr/adm/wtmp,
which contains a record of all the logins since it
logins, logouts, and crashes since the creation of
Each login is listed with user name,
terminal name (with `/dev/'
When an argument is given, logouts produce a similar line without a user name.
Reboots produce a line with `x' in the place of the device name,
and a fossil time indicative of when the system went down.
as in `who am I' (and also `who are you'),
tells who you are logged in as.