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acctdisk(8)							   acctdisk(8)

       acctdisk, acctdusg - Perform disk-usage accounting


       acctdusg [-u file] [-pfile]

       Searches	 file  as  the	alternate  file	 for  login names and numbers,
       instead of searching /etc/passwd.  Writes records  of  file  names  for
       which it does not charge into file.

       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  out‐
       put of the diskusg command is the redirected input to the acctdisk com‐
       mand. When a more thorough, but slower, version of disk	accounting  is
       needed, specify the -o option with the dodisk command. This is not nor‐
       mally done in the /usr/spool/cron/crontabs/[filename] file.   When  the
       -o option is used, the acctdusg command replaces the diskusg command.

       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 stan‐
       dard output. These records are merged  with  other  accounting  records
       with the acctmerg command to produce a daily accounting report.

       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  num‐
       ber  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	 path‐
       name  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

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

	      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: Purpose Time
	      variable that has the value 0 through 59 expressing minutes past
	      the  hour.   Time	 variable  for	the hour of the day in 24-hour
	      clock notation.  Time variable for the day of the	 month.	  Time
	      variable	for  month  of the year.  Time variable for the day or
	      days of the week, where 0 is Sunday and inclusive days are sepa‐
	      rated with a hyphen (-).	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.   To  initiate  a
	      slower, more thorough disk-accounting procedure, add a line sim‐
	      ilar 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.

       Specifies the command path.  Specifies the command path.	 User database
       file.  The active login/logout database file.  Accounting header	 files
       that define formats for writing accounting files.

       Commands:   acct(8),   acctmerg(8),   cron(8),  diskusg(8),  dodisk(8),

       Functions: acct(2)


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