acctdisk(8)

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acctdisk(8)
NAME
  acctdisk, acctdusg - Perform disk-usage accounting

SYNOPSIS
  acctdisk

  acctdusg [-u file] [-pfile]

OPTIONS
  -p file
      Searches file as the alternate file for login names and numbers,
      instead of searching /etc/passwd.

  -u file
      Writes records of file names for which it does not charge into file.

DESCRIPTION
  Normally the acctdisk and acctdusg commands are called from the dodisk
  shell procedure to do disk-usage accounting. The dodisk shell procedure is
  invoked when the cron daemon executes commands in the
  /usr/spool/cron/crontabs/[filename] file. In the usual  case, the output of
  the diskusg command is the redirected input to the acctdisk command. When a
  more thorough, but slower, version of disk accounting is needed, specify
  the -o option with the dodisk command. This is not normally done in the
  /usr/spool/cron/crontabs/[filename] file.  When the -o option is used, the
  acctdusg command replaces the diskusg command.

  acctdisk

  Normally, the acctdisk command reads a temporary output file produced by
  the diskusg or the acctdusg command from standard input, converts each
  record into a total disk-accounting record, and writes it to standard
  output. These records are merged with other accounting records with the
  acctmerg command to produce a daily accounting report.

  acctdusg

  The acctdusg command is called when the -o option is used with the dodisk
  command. This produces a more thorough, but slower, version of disk-
  accounting records.  Otherwise, the dodisk shell procedure invokes the
  diskusg command.

  The acctdusg command reads a list of files from standard input (usually
  piped from a find / -print command), computes the number of disk blocks
  (including indirect blocks) allocated to each file divided by the number of
  hard links then writes an individual record for each user to standard
  output.

  To find the user who is charged for the file, compare each file pathname
  with the login directories of the users. The user who has the longest
  pathname component match is charged for the file. Therefore, the relevant
  information for charging users is not ownership of a file but the directory
  where it is stored.

  The acctdusg command searches the /etc/passwd file, or the alternate
  password file specified with the -p option, for login names, numbers and
  login directories. Each output record has the following format:

       uid login #blocks

EXAMPLES
   1.  To start normal disk-accounting procedures, add a line similar to the
       following to the /usr/spool/cron/crontabs/[filename] file:
	    0 2 * * 4 /usr/sbin/acct/dodisk

       The foregoing example is a typical, periodically invoked command that
       the cron daemon reads and executes. The period is expressed by a 6-
       field entry having the format: mm hh daymon monyr wkday cmd. For any
       field requiring digits, numbers are integers.

       These six fields have the following significance:

       Variable
	   Purpose

       mm  Time variable that has the value 0 through 59 expressing minutes
	   past the hour.

       hh  Time variable for the hour of the day in 24-hour clock notation.

       daymon
	   Time variable for the day of the month.

       monyr
	   Time variable for month of the year.

       wkday
	   Time variable for the day or days of the week, where 0 is Sunday
	   and inclusive days are separated with a hyphen (-).

       cmd Command the cron daemon must execute.

	   Whenever you write any of the time variables described in the
	   foregoing table, an unspecified value must be noted with an *
	   (asterisk) to define an empty field.

	   In the foregoing example, the dodisk shell procedure runs at 02:00
	   hours (2) every Thursday (4). The dodisk shell procedure calls the
	   acctdusg command to redirect its input to a temporary file and
	   then calls the acctdisk shell procedure to redirect disk-usage
	   records from the temporary file as input to a
	   /var/adm/acct/nite/[filename] file as output. The file stored in
	   the /var/adm/acct/nite subdirectory is a permanent  binary record
	   of disk usage for the specified period.

   2.  To initiate a slower, more thorough disk-accounting procedure, add a
       line similar to the following to the
       /usr/spool/cron/crontabs/[filename] file.
	    0 2 * * 0-4 /usr/sbin/acct/dodisk -o

       The dodisk shell procedure calls the acctdusg command and the acctdisk
       command to write disk-usage records to
       the/var/adm/acct/nite/[filename] file just as in the previous example.
       The dodisk procedure runs at 2 a.m. every day (0-6) including Sunday.

FILES
  /usr/sbin/acct/acctdisk
      Specifies the command path.

  /usr/sbin/acct/acctdusg
      Specifies the command path.

  /etc/passwd
      User database file.

  /var/adm/wtmp
      The active login/logout database file.

  /usr/include/sys/acct.h, /usr/include/utmp.h
      Accounting header files that define formats for writing accounting
      files.

SEE ALSO
  Commands: acct(8), acctmerg(8), cron(8), diskusg(8), dodisk(8), runacct(8)

  Functions: acct(2)
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