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hier(5)								       hier(5)

NAME
       hier - file system hierarchy

DESCRIPTION
       The  HP-UX file system is a hierarchical	tree organized for administra-
       tive convenience.  Within  the  file-system  tree  structure,  distinct
       areas  are  provided  for  files	that are private to one	machine, files
       that can	be shared by machines, and home	directories.

       There are two types of files that are shared: those that	can be	shared
       by  multiple  machines  of a common architecture, and those that	can be
       shared by all machines.	This organization allows sharable files	to  be
       stored  on  one	machine	 (the  server),	 but accessed by many machines
       (clients).

       The following diagram illustrates the file system  layout.   Note  that
       there  are  many	directories that are not is this diagram, but are dis-
       cussed below.

		      Diagram of Directory Layout
		 |---- dev
		 |		  |----	bin
		 |---- etc	  |		   |---- bin
		 |		  |----	ccs  ------|
		 |---- usr  ------|		   |---- lib
	   / ----|		  |----	lib
		 |---- sbin	  |
		 |		  |----	sbin
		 |---- var	  |
		 |		  |----	lbin
		 |---- home	  |
		 |		  |----	include	   |---- dict
		 |---- opt	  |		   |
		 |		  |----	share -----|---- lib
		 |---- (export)			   |
						   |---- man

       The following listing discusses a representative	HP-UX directory	 hier-
       archy.	Some  HP-UX applications may add additional directories, which
       are not shown.

       /			Root directory.

       /dev			Special	 files	(block	and  character	device
				files);	see mknod(1M).

       /etc			Host-specific configuration and	administration
				databases.

       /etc/opt			Directory for application-specific  configura-
				tion  files.   (Configuration  information for
				optional packages.)

       /etc/rc.config.d		Startup	configuration files.

       /export			Default	root of	exported file systems.	Server
				only.

       /home			Default	root for user directories.

       /lost+found		Storage	  directory  for  connecting  detached
				files; for use by fsck(1M).

       /mnt			Mounting point for local file systems.

       /net			Mounting point for remote file systems.

       /opt			Root of	subtree	for optional application pack-
				ages.

       /sbin			Essential system commands.  Essential commands
				are defined as executables that	are needed  to
				boot the system	and mount the file systems.  A
				full complement	of utilities is	available only
				after is mounted.

       /sbin/init.d		Startup	and shutdown scripts.

       /sbin/rc0.d		Link files to scripts in for entering or leav-
				ing run	level 0.

       /sbin/rc1.d		Link files to scripts in for entering or leav-
				ing run	level 1.

       /sbin/rc2.d		Link files to scripts in for entering or leav-
				ing run	level 2.

       /sbin/rc3.d		Link files to scripts in for entering or leav-
				ing run	level 3.

       /stand			Standalone  binaries  and kernel configuration
				files.

       /tmp			System-generated  temporary  files;  generally
				cleared	during the boot	operation.

       /usr			Mount  point  for  sharable  user  and	system
				administration commands, libraries  and	 docu-
				mentation.

       /usr/bin			Primary	location for common utilities and user
				commands.

       /usr/ccs			C compilation  system.	 Tools	and  libraries
				used to	generate C programs.

       /usr/ccs/bin		Development   binaries;	  includes  cc,	 make,
				strings, etc.

       /usr/ccs/lib		Development libraries.

       /usr/ccs/lbin		Development backends.

       /usr/conf		Kernel configuration files.

       /usr/contrib		Directory for  user-contributed	 (unsupported,
				internal) commands, files, etc.	 Files in this
				directory come from outside the	local site  or
				organization  (for  example, from users	groups
				or HP service engineers).

       /usr/contrib/bin		User-contributed commands.

       /usr/contrib/include	User-contributed include files.

       /usr/contrib/lib		User-contributed libraries.

       /usr/contrib/man		User-contributed man pages.

       /usr/include		Included header	files, for C  and  other  pro-
				grams.	 Some subdirectories are listed	below.

       /usr/include/machine	Machine-specific C include files.

       /usr/include/nfs		C include files	for Network File System	(NFS).

       /usr/include/sys		Kernel related C-language header files.

       /usr/lbin		Directory  for	backend	 executables  to other
				commands.  A backend  executable  is  an  exe-
				cutable	that is	generally not invoked directly
				by the user.

       /usr/lib			Program	libraries, object code	and  architec-
				ture-dependent databases.

       /usr/lib/nls		Directory for Native Language Support.

       /usr/local		Directory for site-local commands, files, etc.
				Files under this directory  come  from	inside
				the local site or organization.	 See /usr/con-
				trib for non-local  unsupported	 commands  and
				files.

       /usr/local/bin		Site-local commands.

       /usr/local/lib		Site-local libraries.

       /usr/local/man		Site-local man pages.

       /usr/newconfig		Default	 operating  system  configuration data
				files.	This directory is a directory  hierar-
				chy  mirroring	New  versions  of customizable
				configuration files and	databases are  shipped
				here  so as not	to overwrite current versions.
				Files in this directory	are copied to  regular
				locations for newly installed systems.	System
				administrators may wish	to keep	them for later
				reference.

       /usr/old			Files  and  programs that are being phased out
				or are obsolete.

       /usr/sbin		System administration commands.

       /usr/share		Architecture-independent sharable files.

       /usr/share/dict		Dictionaries for spell and ispell.

       /usr/share/lib		Miscellaneous sharable libraries.

       /usr/share/man		Online documentation.

       /var			Root of	subtree	for  "varying"	files.	 These
				are  files that	are created at runtime and can
				grow to	 an  arbitrary	size.	Some  examples
				include	 log,  temporary, transient, and spool
				files.

       /var/adm			System administrative files, such as log files
				and accounting files.  Some of the subdirecto-
				ries are listed	below.

       /var/adm/crash		For saving kernel crash	dumps.

       /var/adm/cron		Directory for cron(1M) queuing.

       /var/adm/sw		Default	 location  for	software  distribution
				depot.

       /var/adm/syslog		Log files generated by syslog.	See syslog(3C)
				and syslogd(1M).

       /var/mail		Incoming mail.

       /var/news		Local-system news articles for news(1).

       /var/opt			Root of	subtree	for varying  files  associated
				with optional software packages.

       /var/preserve		Place  where  ex(1)  and  vi(1)	save lost edit
				sessions until recovered.

       /var/run			Files created when daemons are	running.   For
				example,  the  process	ID (PID) file for sys-
				logd, syslog.pid, is put here.

       /var/spool		Miscellaneous directories for  printer	spool-
				ing, mail delivery, cron(1M), etc.

       /var/spool/cron		cron(1M) and at(1) spooling files.

       /var/spool/lp		Printer	spool files.

       /var/spool/mqueue	Outgoing  mail	and  log files containing mes-
				sages from the mail system.

       /var/spool/uucp		UUCP spool directory.

       /var/tmp			Application-generated temporary	 files.	  This
				directory  generally  is  not  cleared between
				system reboots.

       /var/uucp		UUCP administration files.

DEPENDENCIES
       Some directories	include	commands or files not supported	on  all	 HP-UX
       implementations.

SEE ALSO
       find(1),	grep(1), ls(1),	whereis(1).

								       hier(5)

NAME | DESCRIPTION | DEPENDENCIES | SEE ALSO

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