home *** CD-ROM | disk | FTP | other *** search
- .th WHO I 3/15/72
- .sh NAME
- who \*- who is on the system
- .sh SYNOPSIS
- .bd who
- [ who-file ] [
- .bd "am I"
- ]
- .sh DESCRIPTION
- .it Who,
- without an argument,
- lists the name, typewriter channel, and login time
- for each current UNIX user.
- .s3
- Without an argument,
- .it who
- examines the /etc/utmp
- 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
- was created.
- Then
- .it who
- lists
- logins, logouts, and crashes since the creation of
- the wtmp file.
- Each login is listed with user name,
- typewriter name (with `/dev/'
- suppressed),
- and date and time.
- 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.
- .s3
- With two arguments,
- .it who
- behaves as if it had no arguments except for restricting
- the printout to the line for the current typewriter.
- Thus `who am I' (and also `who are you')
- tells you who you are logged in as.
- .sh FILES
- /etc/utmp
- .sh "SEE ALSO"
- login (I), init (VIII)
- .sh BUGS
-