V10/man/manx/hier.7

.TH HIER 7
.SH NAME
hier \- file system hierarchy
.SH DESCRIPTION
The following outline gives a quick tour through
a representative directory hierarchy.
.na
.nh
.IP /
root
.PD 0
.IP /vmunix
the kernel binary (UNIX itself)
.IP /lost+found
directory for connecting detached files for
.IR fsck (8)
.IP /dev/
devices (4)
.RS
.IP console
main console,
.IR ttyld (4)
.IP tty*
terminals,
.IR ttyld (4)
.IP ra*
disks,
.IR ra (4)
.IP rra*
raw disks,
.IR ra (4)
.IP ...
.RE
.IP /bin/
utility programs, cf /usr/bin/ (1)
.RS
.IP as
assembler
.IP cc
C compiler executive,
cf /lib/ccom, /lib/cpp, /lib/c2
.IP csh
C shell
.IP ...
.RE
.IP /lib/
object libraries and other stuff, cf /usr/lib/
.RS
.IP libc.a
system calls, standard I/O, etc. (2,3,3S)
.IP ...
.IP ccom
C compiler proper
.IP cpp
C preprocessor
.IP c2
C code improver
.IP ...
.RE
.IP /etc/
essential data and maintenance utilities;
sect (8)
.RS
.IP dump
dump program
.IR dump (8)
.IP passwd
password file,
.IR passwd (5)
.IP group
group file,
.IR group (5)
.IP motd
message of the day,
.IR login (8)
.IP whoami
system name,
.IR uname (3)
.IP termcap
description of terminal capabilities,
.IR termcap (5)
.IP ttytype
table of what kind of terminal is on each port,
.IR ttytype (5)
.IP mtab
mounted file table,
.IR mtab (5)
.IP dumpdates
dump history,
.IR dump (8)
.IP fstab
file system configurtion table
.IR fstab (5)
.IP ttys
properties of terminals,
.IR ttys (5)
.IP getty
part of
.IR login ,
.IR getty (8)
.IP init
the parent of all processes,
.IR init (8)
.IP rc
shell program to bring the system up
.IP cron
the clock daemon,
.IR cron (8)
.IP mount
.IR mount (8)
.IP wall
.IR wall (1)
.IP ...
.RE
.IP /tmp/
temporary files, usually on a fast device, cf /usr/tmp/
.RS
.IP e*
used by
.IR ed (1)
.IP ctm*
used by 
.IR cc (1)
.IP ...
.RE
.IP /usr/
general-pupose directory, usually a mounted file system
.RS
.IP adm/
administrative information
.RS
.IP wtmp
login history,
.IR utmp (5)
.IP messages
hardware error messages
.IP tracct
phototypesetter accounting,
.IR troff (1)
.IP lpacct
line printer accounting
.IR lpr (1)
.RE
.RE
.IP /usr\t/bin
.RS
utility programs, to keep /bin/ small
.IP tmp/
temporaries, to keep /tmp/ small
.RS
.IP stm*
used by
.IR sort (1)
.IP raster
used by
.IR plot (1)
.RE
.IP dict/
word lists, etc.
.RS
.IP words
principal word list, used by
.IR look (1)
.IP spellhist
history file for
.IR spell (1)
.RE
.IP games/
.RS
.IP hangman
.IP lib/
library of stuff for the games
.RS
.IP quiz.k/
what
.IR quiz (6)
knows
.RS
.IP index
category index
.IP africa
countries and capitals
.IP ...
.RE
.IP ...
.RE
.IP ...
.RE
.IP include/
standard #include files
.RS
.IP a.out.h
object file layout,
.IR a.out (5)
.IP stdio.h
standard I/O,
.IR stdio (3)
.IP math.h
(3M)
.IP ...
.IP sys/
system-defined layouts, cf /usr/sys/h
.RE
.IP lib/
object libraries and stuff, to keep /lib/ small
.RS
.IP atrun
scheduler for
.IR at (1)
.IP lint/
utility files for lint
.RS
.IP lint[12]
subprocesses for
.IR lint (1)
.IP llib-lc
dummy declarations for /lib/libc.a, used by
.IR lint (1)
.IP llib-lm
dummy declarations for /lib/libc.m
.IP ...
.RE
.IP struct/
passes of
.IR struct (1)
.IP ...
.IP tmac/
macros for
.IR troff (1)
.RS
.IP tmac.an
macros for
.IR man (7)
.IP tmac.s
macros for
.IR ms (7)
.IP ...
.RE
.IP font/
fonts for
.IR troff (1)
.RS
.IP ftR
Times Roman
.IP ftB
Times Bold
.IP ...
.RE
.IP uucp/
programs and data for
.IR uucp (1)
.RS
.IP L.sys
remote system names and numbers
.IP uucico
the real copy program
.IP ...
.RE
.IP units
conversion tables for
.IR units (7)
.IP eign
list of English words to be ignored by
.IR ptx (1)
.RE
.RE
.br
.ne 5
.IP /usr/\tman/
.RS
volume 1 of this manual,
.IR man (1)
.RS
.IP man0/
general
.RS
.IP intro
introduction to volume 1,
.IR ms (7)
format
.IP xx
template for manual page
.RE
.IP man1/
chapter 1
.RS
.IP as.1
.IP mount.1m
.IP ...
.RE
.IP ...
.IP cat1/
preformatted pages for section 1
.IP ...
.RE
.IP spool/
delayed execution files
.RS
.IP at/
used by 
.IR at (1)
.IP lpd/
used by
.IR lpr (1)
.RS
.IP lock
present when line printer is active
.IP cf*
copy of file to be printed, if necessary
.IP df*
daemon control file,
.IR lpd (8)
.IP tf*
transient control file, while 
.I lpr
is working
.RE
.IP uucp/
work files and staging area for 
.IR uucp (1)
.RS
.IP LOGFILE
summary log
.IP LOG.*
log file for one transaction
.RE
.IP mail/
mailboxes for
.IR mail (1)
.RS
.TP
.I name
mail file for user
.I name
.TP
.IR name .lock
lock file while
.I name
is receiving mail
.RE
.IP secretmail/
like
.IR mail /
.IP uucp/
work files and staging area for 
.IR uucp (1)
.RS
.IP LOGFILE
summary log
.IP LOG.*
log file for one transaction
.RE
.RE
.TP
.I wd
initial working directory of a user,
typically
.I wd
is the user's login name
.RS
.TP
.BR . profile
set environment for
.IR sh (1),
.IR environ (5)
.TP
calendar
user's datebook for
.IR calendar (1)
.RE
.IP doc/
papers, mostly in volume 2 of this manual, typically in
.IR ms (7)
format
.RS
.IP as/
assembler manual
.IP c
C manual
.IP ...
.RE
.RE
.RE
.IP /usr/\tsrc/
.RS
.IP
source programs for utilities, etc.
.RS
.IP cmd/
source of commands
.RS
.IP as/
assembler
.IP ar.c
source for
.IR ar (1)
.IP ...
.IP troff/
source for
.I nroff
and
.IR troff (1)
.RS
.IP font/
source for font tables, /usr/lib/font/
.RS
.IP ftR.c
Roman
.IP ...
.RE
.IP term/
terminal characteristics tables, /usr/lib/term/
.RS
.IP tab300.c
DASI 300
.IP ...
.RE
.IP ...
.RE
.RE
.IP games/
source for /usr/games
.IP libc/
source for functions in /lib/libc.a
.RS
.IP crt/
C runtime support
.IP csu/
startup and wrapup routines needed with every C program
.RS
.IP crt0.s
regular startup
.IP mcrt0.s
modified startup for
.I cc \-p
.RE
.IP sys/
system calls (2)
.RS
.IP access.s
.IP alarm.s
.IP ...
.RE
.IP stdio/
standard I/O functions (3S)
.RS
.IP fgets.c
.IP fopen.c
.IP ...
.RE
.IP gen/
other functions in (3)
.RS
.IP abs.c
.IP ...
.RE
.RE
.IP local/
source which isn't normally distributed
.IP new/
source for new versions of commands and library routines
.IP old/
source for old versions of commands and library routines
.IP sys/
system source
.RS
.IP h/
header (include) files
.RS
.IP acct.h
.IR acct (5)
.IP stat.h
.IR stat (2)
.IP ...
.RE
.IP sys/
system source proper
.RS
.IP main.c
.IP pipe.c
.IP sysent.c
system entry points
.RE
.RE
.RE
.IP ucb/
binaries of programs developed at UCB
.RS
.IP ...
.IP edit
editor for beginners
.IP ex
command editor for experienced users
.IP ...
.IP mail
mail reading/sending subsystem
.IP man
on line documentation
.IP ...
.IP pi
Pascal translator
.IP px
Pascal interpreter
.IP ...
.IP vi
visual editor
.RE
.RE
.ad
.SH SEE ALSO
.IR ls (1), 
.IR du (1), 
.IR icheck (8), 
.IR find (1), 
.IR grep (1)
.SH BUGS
The position of files is subject to change without notice.