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7. Miscellaneous Process Accounting Commands

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.