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it(8)									it(8)


  it - configure a system after	installation




  The it program executes scripts before transferring control of the system
  to the user, typically before	the first user logs in.	 The it	program	exe-
  cutes	programs that collect information such as system name, passwords,
  timezone, and	current	date.

  A system can be in a run level at any	given time; each run level has a
  specific group of processes that run at that level. The init program
  operates in one of four run levels: 0, s, 2, or 3. The run level changes
  when init is invoked by a privileged user.  The it program is	run from
  /etc/inittab whenever	the system is booted or	rebooted, or when a level
  transition occurs for	some other reason, such	as within init3. The it	pro-
  gram first determines	which run level	the system is coming up	under. Next
  it turns on shared libraries and swap	and then searches for any
  /sbin/it.d/run-level directories, where run-level names a system run level;
  for example, 2.d, 3.d, 23.d, and so forth.  If any such directories exist,
  it collects the names	of all files in	those directories.  These files	are
  typically links to files in the /sbin/it.d/bin directory and are created
  beforehand by	itruns(8). After collecting the	file names, it sorts them,
  eliminates duplicate references, orders the names as specified by the	data
  file /sbin/it.d/data/options.mask, executes the files, and finally removes
  the files it executed.  After	all the	files collected	from the run level
  directories have been	handled, it exits.

  The /sbin/it.d/data/options.mask file	contains a single line with a list of
  file names separated by colons.  The it command executes collected files in
  the order in which they appear from left to right in the options.mask	file.
  Programs not listed in the options.mask file are executed after those
  defined in options.mask. These "unspecified" programs	are run	in the order
  into which they were initially sorted; that order is controlled by the
  LC_COLLATE environmental variable and	the specifications in the
  /usr/lib/nls/loc/locale files.


      Specifies	execution priorities of	files to be run	by it

      Files to be linked by itruns(8) for execution by it


  Commands: init(8), itruns(8),	rc0(8),	rc2(8),	rc3(8),	who(1)