| UTMPX(5) | File Formats Manual | UTMPX(5) |
utmpx, wtmpx,
lastlogx —
#include <utmpx.h>
The <utmpx.h>
header defines the structures and functions for logging user. Currently
logged in users are tracked in /var/run/utmpx, a
list of all logins and logouts, as well as all shutdowns, reboots and date
changes, is kept in /var/log/wtmpx, and the last
login of each user is noted in
/var/log/lastlogx.
The interface to the utmpx file is
described in
getutxent(3).
The wtmpx file can grow rapidly on busy
systems, and is normally rotated with
newsyslog(8).
In the event of a date change, a shutdown, or a reboot, the
following items are logged in the wtmpx file:
date|’ indicates the time
prior to the change, and the character
‘{’ indicates the new time.rebootshutdown~’ is placed in the field
ut_line, and reboot or
shutdown in the field
ut_name (see
shutdown(8) and
reboot(8)), using
logwtmpx(3).utmpx file.wtmpx file.lastlogx file.| January 31, 2007 | NetBSD 10.0 |