UTMP(V) 9/10/73 UTMP(V)
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 lo-
gin 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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