- ac
ac prints out statistics about users' connection times in
hours based on the logins and logouts in the current /var/log/wtmp file. ac is
also capable of printing out time totals for each day (-d option), and for each
user (-p option). - accton
accton is used to turn on or turn off process accounting.
The file is normally executed at system bootup or shutdown via system init
scripts. - last
last goes through the /var/log/wtmp file and prints out
information about users' connection times. - sa
sa summarizes accounting information from previously
executed commands, software I/O operation times, and CPU times, as recorded in the
accounting record file /var/account/pacct. - lastcomm
lastcomm prints out the information about all previously
executed commands, recorded in /var/account/pacct.
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