HIER(7) |
FreeBSD Miscellaneous Information Manual |
HIER(7) |
NAME
hier —
layout of file systems
DESCRIPTION
A sketch of the file system hierarchy.
-
/
-
root directory of the file system
-
/bin/
-
user utilities fundamental to both single-user and multi-user environments
-
/boot/
-
programs and configuration files used during operating system bootstrap
-
defaults/
-
default bootstrapping configuration files; see
loader.conf(5)
-
kernel/
-
pure kernel executable (the operating system loaded into memory at boot time).
-
modules/
-
third-party loadable kernel modules; see
kldstat(8)
-
/cdrom/
-
default mount point for CD-ROM drives
-
/compat/
-
normally a link to
/usr/compat. If not, then the
/usr/compat comments apply
-
/dev/
-
device special files managed by
devfs(5)
-
fd/
-
file descriptor files; see
fd(4)
-
net/
-
network devices
-
/etc/
-
system configuration files and scripts
-
defaults/
-
default system configuration files; see
rc(8)
-
bluetooth/
-
bluetooth configuration files
-
localtime
-
local timezone information; see
ctime(3)
-
mail/
-
Sendmail control files
-
mtree/
-
mtree configuration files; see
mtree(8)
-
pam.d/
-
configuration files for the Pluggable Authentication Modules (PAM) library
-
periodic/
-
scripts that are run daily, weekly, and monthly, via
cron(8); see
periodic(8)
-
rc.d/
-
System and daemon startup/control scripts; see
rc(8)
-
security/
-
OpenBSM audit configuration files; see
audit(8)
-
ppp/
-
ppp configuration files; see
ppp(8)
-
ssh/
-
OpenSSH configuration files; see
ssh(1)
-
ssl/
-
OpenSSL configuration files
-
/lib/
-
critical system libraries needed for binaries in
/bin and
/sbin
-
geom/
-
class-specific libraries for the
geom(8) utility
-
/libexec/
-
critical system utilities needed for binaries in
/bin and
/sbin
-
/media/
-
contains subdirectories to be used as mount points for removable media such as CDs, USB drives, and floppy disks
-
/mnt/
-
empty directory commonly used by system administrators as a temporary mount point
-
/proc/
-
process file system; see
procfs(5)
-
/rescue/
-
statically linked programs for emergency recovery; see
rescue(8)
-
/root/
-
root's HOME directory
-
/sbin/
-
system programs and administration utilities fundamental to both single-user and multi-user environments
-
/tmp/
-
temporary files that are not guaranteed to persist across system reboots
-
/usr/
-
contains the majority of user utilities and applications
-
bin/
-
common utilities, programming tools, and applications
-
compat/
-
files needed to support binary compatibility with other operating systems, such as Linux
-
games/
-
useful and semi-frivolous programs
-
include/
-
standard C include files
-
altq/
-
C include files for alternate queueing
-
arpa/
-
C include files for Internet service protocols
-
bsnmp/
-
C include files for the SNMP daemon
-
c++/
-
C++ include files
-
cam/
-
C include files for the Common Access Methods Layer
-
scsi/
-
The SCSI device on top of CAM
-
dev/
-
C include files for programming various
FreeBSD devices
-
ic/
-
Various header files describing driver- and bus-independent hardware circuits
-
ofw/
-
Open Firmware support
-
pbio/
-
8255 PPI cards; see
pbio(4)
-
ppbus/
-
The parallel port bus; see
ppbus(4)
-
usb/
-
The USB subsystem
-
utopia/
-
Physical chip driver for ATM interfaces; see
utopia(4)
-
wi/
-
The
wi(4) WaveLAN driver
-
fs/
-
-
fdescfs/
-
per-process file descriptors file system
-
fifofs/
-
IEEE Std 1003.1 (“POSIX.1”) FIFOs file system
-
msdosfs/
-
MS-DOS file system
-
nfs/
-
C include files for NFS (Network File System) version 2, 3 and 4
-
nullfs/
-
loopback file system
-
procfs/
-
process file system
-
smbfs/
-
SMB/CIFS file system
-
udf/
-
UDF file system
-
unionfs
-
union file system
-
geom/
-
GEOM framework
-
concat/
-
CONCAT GEOM class
-
gate/
-
GATE GEOM class
-
mirror/
-
MIRROR GEOM class
-
nop/
-
NOP GEOM class
-
raid3/
-
RAID3 GEOM class
-
stripe/
-
STRIPE GEOM class
-
isc/
-
ISC utility library libisc include files
-
isofs/
-
-
cd9660/
-
iso9660 file system
-
libmilter/
-
C include files for libmilter, the
sendmail(8) mail filter API
-
machine/
-
machine-specific C include files
-
net/
-
miscellaneous network C include files
-
netatalk/
-
Appletalk protocol
-
netinet/
-
C include files for Internet standard protocols; see
inet(4)
-
netinet6/
-
C include files for Internet protocol version 6; see
inet6(4)
-
netipsec/
-
kernel key-management service; see
ipsec(4)
-
netipx/
-
IPX/SPX protocol stacks
-
netnatm/
-
NATM include files; see
natm(4)
-
api/
-
include files for the signalling API
-
msg/
-
include files that describe signalling messages and declare associated functions
-
saal/
-
include files for the signalling AAL layer
-
sig/
-
include files for the UNI signalling protocol
-
netsmb/
-
SMB/CIFS requester
-
nfs/
-
C include files for NFS (Network File System) version 2 and 3 (legacy)
-
objc/
-
Objective C include files
-
openssl/
-
OpenSSL (Cryptography/SSL toolkit) headers
-
pccard/
-
PC-CARD controllers
-
protocols/
-
C include files for Berkeley service protocols
-
readline/
-
get a line from a user, with editing; see
readline(3)
-
rpc/
-
remote procedure calls; see
rpc(3)
-
rpcsvc/
-
definition of RPC service structures; see
rpc(3)
-
security/
-
PAM; see
pam(8)
-
sys/
-
system C include files (kernel data structures)
-
ufs/
-
C include files for UFS (The U-word File System)
-
ffs/
-
Fast file system
-
ufs/
-
UFS file system
-
vm/
-
virtual memory; see
vmstat(8)
-
lib/
-
shared and archive
ar(1)-type libraries
-
aout/
-
a.out archive libraries
-
compat/
-
shared libraries for compatibility
-
aout/
-
a.out backward compatibility libraries
-
dtrace/
-
DTrace library scripts
-
engines/
-
OpenSSL (Cryptography/SSL toolkit) dynamically loadable engines
-
private/
-
Private system libraries not for use by third-party programs. ABI and API stability are not guaranteed.
-
libdata/
-
miscellaneous utility data files
-
gcc/
-
gcc(1) configuration data
-
ldscripts/
-
linker scripts; see
ld(1)
-
lint/
-
various prebuilt lint libraries; see
lint(1)
-
libexec/
-
system daemons & system utilities (executed by other programs)
-
aout/
-
utilities to manipulate a.out executables
-
elf/
-
utilities to manipulate ELF executables
-
lpr/
-
utilities and filters for LP print system; see
lpr(1)
-
sendmail/
-
the
sendmail(8) binary; see
mailwrapper(8)
-
sm.bin/
-
restricted shell for
sendmail(8); see
smrsh(8)
-
local/
-
local executables, libraries, etc. Also used as the default destination for the
FreeBSD ports framework. Within
local/, the general layout sketched out by
hier for
/usr should be used. Exceptions are the
man directory (directly under
local/ rather than under
local/share/), ports documentation (in
share/doc/<port>/), and
/usr/local/etc (mimics
/etc).
-
obj/
-
architecture-specific target tree produced by building the
/usr/src tree
-
ports/
-
The
FreeBSD ports collection (optional).
-
sbin/
-
system daemons & system utilities (executed by users)
-
share/
-
architecture-independent files
-
calendar/
-
a variety of pre-fab calendar files; see
calendar(1)
-
dict/
-
word lists; see
look(1)
-
freebsd
-
FreeBSD-specific terms, proper names, and jargon
-
words
-
common words
-
web2
-
words from Webster's 2nd International
-
papers/
-
reference databases; see
refer(1)
-
doc/
-
miscellaneous documentation; source for most of the printed
BSD manuals (available from the USENIX association)
-
FAQ/
-
Frequently Asked Questions
-
IPv6/
-
implementation notes for IPv6
-
bind/
-
documents pertaining to BIND (the Berkeley Internet Name Domain)
-
es/
-
Spanish translations of documents in /usr/share/doc
-
handbook/
-
FreeBSD Handbook
-
ja/
-
Japanese translations of documents in /usr/share/doc
-
legal/
-
License files for vendor supplied firmwares
-
ncurses/
-
HTML documents pertaining to ncurses; see
ncurses(3)
-
ntp/
-
HTML documents pertaining to the Network Time Protocol
-
papers/
-
UNIX Papers
-
psd/
-
UNIX Programmer's Supplementary Documents
-
ru/
-
Russian translations of documents in /usr/share/doc
-
smm/
-
UNIX System Manager's Manual
-
tutorials/
-
FreeBSD tutorials
-
usd/
-
UNIX User's Supplementary Documents
-
zh/
-
Chinese translations of documents in /usr/share/doc
-
examples/
-
various examples for users and programmers
-
games/
-
ASCII text files used by various games
-
groff_font/
-
device description file for device name
-
info/
-
GNU Info hypertext system
-
keys/
-
known trusted and revoked keys.
-
keys/pkg/
-
fingerprints for
pkg(7) and
pkg(8)
-
locale/
-
localization files; see
setlocale(3)
-
man/
-
manual pages
-
mdocml/
-
data files used by mdocml
-
me/
-
macros for use with the me macro package; see
me(7)
-
misc/
-
miscellaneous system-wide ASCII text files
-
fonts/
-
???
-
termcap
-
terminal characteristics database; see
termcap(5)
-
mk/
-
templates for make; see
make(1)
-
nls/
-
national language support files; see
mklocale(1)
-
security/
-
data files for security policies such as
mac_lomac(4)
-
sendmail/
-
sendmail(8) configuration files
-
skel/
-
example
. (dot) files for new accounts
-
snmp/
-
MIBs, example files and tree definitions for the SNMP daemon.
-
defs/
-
Tree definition files for use with
gensnmptree(1)
-
mibs/
-
MIB files
-
syscons/
-
files used by syscons; see
syscons(4)
-
fonts/
-
console fonts; see
vidcontrol(1) and
vidfont(1)
-
keymaps/
-
console keyboard maps; see
kbdcontrol(1) and
kbdmap(1)
-
scrnmaps/
-
console screen maps
-
tabset/
-
tab description files for a variety of terminals; used in the termcap file; see
termcap(5)
-
tmac/
-
text processing macros; see
nroff(1) and
troff(1)
-
vi/
-
localization support and utilities for
vi(1)
-
zoneinfo/
-
timezone configuration information; see
tzfile(5)
-
vt/
-
files used by vt; see
vt(4)
-
fonts/
-
console fonts; see
vidcontrol(1) and
vidfont(1)
-
keymaps/
-
console keyboard maps; see
kbdcontrol(1) and
kbdmap(1)
-
src/
-
BSD, third-party, and/or local source files
-
bin/
-
source code for files in /bin
-
cddl/
-
Utilities covered by the Common Development and Distribution License
-
contrib/
-
source code for contributed software
-
crypto/
-
source code for contributed cryptography software
-
etc/
-
source code for files in
/etc
-
games/
-
source code for files in
/usr/games
-
gnu/
-
Utilities covered by the GNU General Public License
-
include/
-
source code for files in
/usr/include
-
kerberos5/
-
build infrastructure for kerberos version 5
-
lib/
-
source code for files in
/usr/lib
-
libexec/
-
source code for files in
/usr/libexec
-
release/
-
files required to produce a
FreeBSD release
-
sbin/
-
source code for files in
/sbin
-
secure/
-
build directory for files in
/usr/src/crypto
-
share/
-
source for files in
/usr/share
-
sys/
-
kernel source code
-
tools/
-
tools used for maintenance and testing of
FreeBSD
-
usr.bin/
-
source code for files in
/usr/bin
-
usr.sbin/
-
source code for files in
/usr/sbin
-
tests/
-
The
FreeBSD test suite. See
tests(7) for more details.
-
/var/
-
multi-purpose log, temporary, transient, and spool files
-
account/
-
system accounting files
-
acct
-
execution accounting file; see
acct(5)
-
at/
-
timed command scheduling files; see
at(1)
-
jobs/
-
directory containing job files
-
spool/
-
directory containing output spool files
-
backups/
-
miscellaneous backup files
-
cache/
-
miscellaneous cached files
-
pkg/
-
cached packages for
pkg(8)
-
crash/
-
default directory to store kernel crash dumps; see
crash(8) and
savecore(8)
-
cron/
-
files used by cron; see
cron(8)
-
tabs/
-
crontab files; see
crontab(5)
-
db/
-
miscellaneous automatically generated system-specific database files
-
empty/
-
empty directory for use by programs that need a specifically empty directory. Used for instance by
sshd(8) for privilege separation.
-
games/
-
miscellaneous game status and score files
-
heimdal/
-
kerberos server databases; see
kdc(8)
-
log/
-
miscellaneous system log files
-
utx.lastlogin
-
last login log; see
getutxent(3)
-
utx.log
-
login/logout log; see
getutxent(3)
-
mail/
-
user mailbox files
-
msgs/
-
system messages database; see
msgs(1)
-
preserve/
-
temporary home of files preserved after an accidental death of an editor; see
ex(1)
-
quotas/
-
file system quota information files
-
run/
-
system information files describing various info about system since it was booted
-
ppp/
-
writable by the “network” group for command connection sockets; see
ppp(8)
-
utx.active
-
database of current users; see
getutxent(3)
-
rwho/
-
rwho data files; see
rwhod(8),
rwho(1), and
ruptime(1)
-
spool/
-
miscellaneous printer and mail system spooling directories
-
clientmqueue/
-
undelivered submission mail queue; see
sendmail(8)
-
ftp/
-
commonly ~ftp; the anonymous ftp root directory
-
mqueue/
-
undelivered mail queue; see
sendmail(8)
-
output/
-
line printer spooling directories
-
tmp/
-
temporary files that are kept between system reboots
-
vi.recover/
-
the directory where recovery files are stored
-
yp/
-
the NIS maps
NOTES
This manual page documents the default
FreeBSD file system layout, but the actual hierarchy on a given system is defined at the system administrator's discretion. A well-maintained installation will include a customized version of this document.
SEE ALSO
apropos(1),
find(1),
finger(1),
grep(1),
ls(1),
whatis(1),
whereis(1),
which(1),
fd(4),
devfs(5),
fsck(8)
HISTORY
A
hier manual page appeared in Version 7 AT&T UNIX.