NAME
utmp - user information
DESCRIPTION
This file allows one to discover information about who is
currently using UNIX. The file is binary; each entry is
16(10) bytes long. The first eight bytes contain a user's
login name or are null if the table slot is unused. The low
order byte of the next word contains the last character of a
typewriter name. The next two words contain the user's
login time. The last word is unused.
FILES
/etc/utmp
SEE ALSO
init (VIII) and login (I), which maintain the file; who (I),
which interprets it.
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