hier(5) 							File Formats Manual							   hier(5)

NAME

       hier - file system hierarchy

DESCRIPTION

       The  HP-UX  file  system  is a hierarchical tree organized for administrative 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 hierarchy.  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 configuration 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 packages.

       /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 leaving run level 0.

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

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

       /sbin/rc3.d		Link files to scripts in for entering or leaving 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 documentation.

       /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 programs.  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 executable that is generally  not
				invoked directly by the user.

       /usr/lib 		Program libraries, object code and architecture-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/contrib 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 hierarchy 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 subdirectories 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 syslogd,  syslog.pid,  is  put
				here.

       /var/spool		Miscellaneous directories for printer spooling, 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 messages 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)