|AC(8)||System Manager's Manual||AC(8)|
acexamines these records and writes the accumulated connect time for all logins to the standard output.
The options are as follows:
!’ to indicate not this tty and end with ‘
*’ to indicate all similarly named ttys. Multiple
-tflags may be specified.
If no arguments are given,
ac displays the
total connect time for all accounts with login sessions recorded in
The default wtmp file will increase
without bound unless it is truncated. It is normally truncated by
newsyslog(8), which renames and
rotates the wtmp files every week. In order for
ac to run in sync with the rotation of
newsyslog(8) is configured to run just
User accounting information can be mailed weekly to the system administrator: see weekly(8) for more information. No login or connect time accounting is performed if /var/log/wtmp does not exist.
acutility exits 0 on success, and >0 if an error occurs.
$ ac -p -t "ttyd*" > modems $ ac -p -t "!ttyd*" > other
accommand appeared in Version 6 AT&T UNIX. This version of
acwas written for NetBSD 0.9A from the specification provided by various systems' manual pages.
|September 3, 2010||OpenBSD-current|