term% ls -F
term% pwd
term% cat index.txt
AC(1M)                                                                  AC(1M)

       ac - login accounting

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

       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 to‐
       tals; without this option, only totals are printed.  -d causes a print‐
       out  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 other hand if the file  is  left  undis‐
       turbed  it will grow without bound, so periodically any information de‐
       sired should be collected and the file truncated.


       init(8), login(1), utmp(5).