ac man page on UNIXv7

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AC(1M)									AC(1M)

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 option, 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 other hand if the file  is  left	undisā€
       turbed  it  will	 grow  without	bound, so periodically any information
       desired should be collected and the file truncated.

FILES
       /usr/adm/wtmp

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

									AC(1M)
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