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ac(8)									ac(8)



NAME

  ac - Outputs connect-session records

SYNOPSIS

  /usr/sbin/ac [-dp] [-w filename] [user(s) ...]

OPTIONS

  -d  Outputs the total	connect	time for each midnight-to-midnight period for
      which a wtmp file	exists.	When user(s) is	specified, this	option limits
      the output to the	login names specified by any user(s) operand(s).

  -p  Outputs the connect time total by	individual login name of the user
      specified	with the -p option and the user(s) operand. Omission of	this
      option permits a total only for the midnight-to-midnight time period
      for all logged in	users to be produced.

  -w filename
      Specifies	a wtmp file other than the /var/adm/wtmp file. The wtmp	file
      you access for data may have been	created	automatically by some shell
      script administration command (for example, runacct) or manually by the
      system administrator when	the original /var/adm/wtmp file	becomes	too
      large.

DESCRIPTION

  The ac command prints	to the default output device the total connect time
  in hours to the nearest hundredth for	all users, or the connect time for
  any user(s) specified	with the -p option. It also prints the names of	users
  specified by the user(s) operand who have logged in during the life of the
  current /var/adm/wtmp	file.

  Connect-time records are written by the init and the login programs and are
  collected in the /var/adm/wtmp file, when such a file	exists.	When a
  /var/adm/wtmp	file does not exist, no	connect-time accounting	records	are
  written; consequently, when connect-time records are wanted, the system
  administrator	should create a	/var/adm/wtmp file that	has an initial record
  length of 0 (zero). Records in wtmp files (there may be more than one	such
  file)	should be processed periodically to keep the files from	becoming too
  large.

  When you use the runacct command in a	shell script, additional wtmp files
  can be automatically created whenever	the current wtmp file becomes too
  large. You can output	the contents of	any of these other files when you
  specify the -w option	and the	desired	wtmp filename.

  The ac command is run	independently with respect to any accounting shell
  procedure created or run by any of the acct/*	shell procedures or runacct
  commands.



EXAMPLES

   1.  To obtain an output of the total	connect	time for all users who have
       logged in during	the life of the	current	wtmp data file,	enter:
	    /usr/sbin/ac

   2.  To obtain an output of the total	connect	time for grossman and mcwhin-
       ney as recorded in the default wtmp data	file, enter:
	    /usr/sbin/ac  grossman  mcwhinney

   3.  To obtain an output of the connect time subtotals for grossman and
       mcwhinney as recorded in	the default wtmp data file, enter:
	    /usr/sbin/ac -p  grossman  mcwhinney



FILES

  /usr/sbin/ac
      Specifies	the command path.

  /var/adm/wtmp
      Is the active data file for the collection of connect-time records.

SEE ALSO

  Commands: login(1), init(8)