    AC(VIII)                     2/20/74                     AC(VIII)

    NAME
         ac - login accounting

    SYNOPSIS
         ac [ -w wtmp ] [ -p ] [ -d ] people

    DESCRIPTION
         Ac produces a printout giving connect time for each user who
         has logged in during the life of the current wtmp  file.   A
         total  is also produced.  -w is used to specify an alternate
         wtmp file.  -p prints individual totals;  without  this  op-
         tion,  only  totals  are  printed.  -d causes a printout for
         each midnight to midnight period.  Any people will limit the
         printout to only the specified login names.  If no wtmp file
         is given, /usr/adm/wtmp is used.

         The accounting file /usr/adm/wtmp is maintained by init  and
         login.  Neither of these programs creates the file, so if it
         does not exist no connect-time accounting is done.  To start
         accounting, it should be created with length 0.  On the oth-
         er hand if the file is left undisturbed it will grow without
         bound,  so  periodically  any  information desired should be
         collected and the file truncated.

    FILES
         /usr/adm/wtmp

    SEE ALSO
         init(VIII), login(I), wtmp(V).

    BUGS

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