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Annotation of cci/usr/src/man/man1/who.1, revision 1.1.1.1

1.1       root        1: .TH WHO 1  "18 January 1983"
                      2: .SH NAME
                      3: who \- who is on the system
                      4: .SH SYNOPSIS
                      5: .B who
                      6: [ who-file ] [
                      7: .B "am I"
                      8: ]
                      9: .SH DESCRIPTION
                     10: .I Who,
                     11: without an argument,
                     12: lists the login name, terminal name, and login time
                     13: for each current UNIX user.
                     14: .PP
                     15: Without an argument,
                     16: .I who
                     17: examines the
                     18: .I /etc/utmp
                     19: file to obtain its information.
                     20: If a file is given, that file is examined.
                     21: Typically the given file will be /usr/adm/wtmp,
                     22: which contains a record of all the logins since it
                     23: was created.
                     24: Then
                     25: .I who
                     26: lists
                     27: logins, logouts, and crashes since the creation of
                     28: the wtmp file.
                     29: Each login is listed with user name,
                     30: terminal name (with `/dev/'
                     31: suppressed),
                     32: and date and time.
                     33: When an argument is given, logouts produce a similar line without a user name.
                     34: Reboots produce a line with `x' in the place of the device name,
                     35: and a fossil time indicative of when the system went down.
                     36: .PP
                     37: With two arguments,
                     38: as in `who am I' (and also `who are you'),
                     39: .I who
                     40: tells who you are logged in as.
                     41: .SH FILES
                     42: /etc/utmp
                     43: .SH "SEE ALSO"
                     44: getuid(2), utmp(5)

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