a2p
accept
access
acct
addftinfo
addr2line
adjtime
afmtodit
after
aio_cancel
aio_error
aio_read
aio_return
aio_suspend
aio_waitcomplete
aio_write
alias
aliases
alloc
anvil
append
apply
apropos
ar
array
as
asa
asn1parse
at
atq
atrm
attemptckalloc
attemptckrealloc
authlib
authtest
autopoint
awk
b64decode
b64encode
basename
batch
bc
bdes
bell
bg
bgerror
biff
big5
binary
bind
bindkey
bindtags
bindtextdomain
bio
bitmap
blowfish
bn
bootparams
bootptab
bounce
brandelf
break
breaksw
brk
bsdiff
bsdtar
bsnmpd
bspatch
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builtin
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bunzip2
button
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bzcat
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c2ph
c89
c99
ca
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calendar
canvas
cap_mkdb
case
cat
catch
catman
cc
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chfn
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chio
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chown
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ci
ciphers
ckalloc
ckdist
ckfree
ckrealloc
cksum
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clock
clock_getres
clock_gettime
clock_settime
close
cmp
co
col
colcrt
colldef
colors
colrm
column
comm
command
compile_et
complete
compress
concat
config
connect
console
continue
core
courierlogger
couriertcpd
cp
cpan
cpio
cpp
creat
crl
crontab
crunchgen
crunchide
crypt
crypto
csh
csplit
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ctm_dequeue
ctm_rmail
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cu
cursor
cursors
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date
dbiprof
dbiproxy
dc
dcgettext
dcngettext
dd
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default
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destroy
devfs
df
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dgst
dh
dhparam
dialog
diff
diff3
dig
dir
dirent
dirname
dirs
discard
disktab
dngettext
do
domainname
done
dprofpp
dsa
dsaparam
dtmfdecode
du
dup
dup2
eaccess
ec
ecdsa
echo
echotc
ecparam
ed
edit
editrc
ee
egrep
elf
elfdump
elif
else
enc
enc2xs
encoding
end
endif
endsw
engine
enigma
entry
env
envsubst
eof
eqn
err
errno
error
errstr
esac
ethers
euc
eui64
eval
event
evp
ex
exec
execve
exit
expand
export
exports
expr
extattr
extattr_delete_fd
extattr_delete_file
extattr_get_fd
extattr_get_file
extattr_set_fd
extattr_set_file
f77
false
famm
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fbtab
fc
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fchmod
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fdformat
fdread
fdwrite
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fg
fgrep
fhopen
fhstat
fhstatfs
fi
file
file2c
fileevent
filename
filetest
find
find2perl
finger
flex
flock
flush
fmt
focus
fold
font
fontedit
for
foreach
fork
format
forward
fpathconf
frame
from
fs
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fsync
ftp
ftpchroot
ftpusers
ftruncate
futimes
g711conv
gb2312
gb18030
gbk
gcc
gcore
gcov
gdb
gencat
gendsa
genrsa
gensnmptree
getconf
getdents
getdirentries
getdtablesize
getegid
geteuid
getfacl
getfh
getfsstat
getgid
getgroups
getitimer
getlogin
getopt
getopts
getpeername
getpgid
getpgrp
getpid
getppid
getpriority
getresgid
getresuid
getrlimit
getrusage
gets
getsid
getsockname
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gettext
gettextize
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gettytab
getuid
glob
global
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goto
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gprof
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grid
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groups
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gzexe
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h2ph
h2xs
hash
hashstat
hd
head
help2man
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hexdump
history
host
hostname
hosts
hosts_access
hosts_options
hpftodit
http
hup
i386_get_ioperm
i386_get_ldt
i386_set_ioperm
i386_set_ldt
i386_vm86
iconv
id
ident
idprio
if
ifnames253
ifnames259
image
imapd
incr
indent
indxbib
info
infokey
inode
install
instmodsh
interp
intro
introduction
ioctl
ipcrm
ipcs
ipf
ipftest
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kill
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labelframe
lam
lappend
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lastlog
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ld
ldap
ldapadd
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ldapwhoami
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leave
less
lesskey
lex
lgetfh
lhash
libnetcfg
library
limit
limits
lindex
link
linprocfs
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lint
lio_listio
list
listbox
listen
lj4_font
lkbib
llength
lmtp
ln
load
loadfont
local
locale
locate
lock
lockf
log
logger
login
logins
logname
logout
look
lookbib
lorder
lower
lp
lpq
lpr
lprm
lptest
lrange
lreplace
ls
lsearch
lseek
lset
lsort
lstat
lsvfs
lutimes
lynx
m4
madvise
magic
mail
maildiracl
maildirkw
maildirmake
mailq
mailx
make
makeinfo
makewhatis
man
manpath
master
mc
mcedit
mcview
md2
md4
md5
mdc2
memory
menu
menubar
menubutton
merge
mesg
message
mincore
minherit
minigzip
mkdep
mkdir
mkfifo
mkimapdcert
mklocale
mknod
mkpop3dcert
mkstr
mktemp
mlock
mlockall
mmap
mmroff
modfind
modfnext
modnext
modstat
moduli
more
motd
mount
mprotect
mptable
msdos
msdosfs
msgattrib
msgcat
msgcmp
msgcomm
msgconv
msgen
msgexec
msgfilter
msgfmt
msggrep
msginit
msgmerge
msgs
msgunfmt
msguniq
mskanji
msql2mysql
msync
mt
munlock
munlockall
munmap
mv
myisamchk
myisamlog
myisampack
mysql
mysqlaccess
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mysqld_multi
mysqld_safe
mysqlhotcopy
mysqlimport
mysqlshow
mysql_config
mysql_fix_privilege_tables
mysql_zap
namespace
nanosleep
nawk
nc
ncal
ncplist
ncplogin
ncplogout
neqn
netconfig
netgroup
netid
netstat
networks
newaliases
newgrp
nex
nfsstat
nfssvc
ngettext
nice
nl
nm
nmount
nohup
nologin
notify
nroff
nseq
nslookup
ntp_adjtime
ntp_gettime
nvi
nview
objcopy
objdump
objformat
ocsp
od
onintr
open
openssl
opieaccess
opieinfo
opiekey
opiekeys
opiepasswd
option
options
oqmgr
pack
package
packagens
pagesize
palette
pam_auth
panedwindow
parray
passwd
paste
patch
pathchk
pathconf
pawd
pax
pbm
pcre
pcreapi
pcrebuild
pcrecallout
pcrecompat
pcrecpp
pcregrep
pcrematching
pcrepartial
pcrepattern
pcreperform
pcreposix
pcreprecompile
pcresample
pcretest
perl
perl56delta
perl58delta
perl561delta
perl570delta
perl571delta
perl572delta
perl573delta
perl581delta
perl582delta
perl583delta
perl584delta
perl585delta
perl586delta
perl587delta
perl588delta
perl5004delta
perl5005delta
perlaix
perlamiga
perlapi
perlapio
perlapollo
perlartistic
perlbeos
perlbook
perlboot
perlbot
perlbs2000
perlbug
perlcall
perlcc
perlce
perlcheat
perlclib
perlcn
perlcompile
perlcygwin
perldata
perldbmfilter
perldebguts
perldebtut
perldebug
perldelta
perldgux
perldiag
perldoc
perldos
perldsc
perlebcdic
perlembed
perlepoc
perlfaq
perlfaq1
perlfaq2
perlfaq3
perlfaq4
perlfaq5
perlfaq6
perlfaq7
perlfaq8
perlfaq9
perlfilter
perlfork
perlform
perlfreebsd
perlfunc
perlglossary
perlgpl
perlguts
perlhack
perlhist
perlhpux
perlhurd
perlintern
perlintro
perliol
perlipc
perlirix
perlivp
perljp
perlko
perllexwarn
perllinux
perllocale
perllol
perlmachten
perlmacos
perlmacosx
perlmint
perlmod
perlmodinstall
perlmodlib
perlmodstyle
perlmpeix
perlnetware
perlnewmod
perlnumber
perlobj
perlop
perlopenbsd
perlopentut
perlos2
perlos390
perlos400
perlothrtut
perlpacktut
perlplan9
perlpod
perlpodspec
perlport
perlqnx
perlre
perlref
perlreftut
perlrequick
perlreref
perlretut
perlrun
perlsec
perlsolaris
perlstyle
perlsub
perlsyn
perlthrtut
perltie
perltoc
perltodo
perltooc
perltoot
perltrap
perltru64
perltw
perlunicode
perluniintro
perlutil
perluts
perlvar
perlvmesa
perlvms
perlvos
perlwin32
perlxs
perlxstut
perror
pfbtops
pftp
pgrep
phones
photo
pic
pickup
piconv
pid
pipe
pkcs7
pkcs8
pkcs12
pkg_add
pkg_check
pkg_create
pkg_delete
pkg_info
pkg_sign
pkg_version
pkill
pl2pm
place
pod2html
pod2latex
pod2man
pod2text
pod2usage
podchecker
podselect
poll
popd
popup
posix_madvise
postalias
postcat
postconf
postdrop
postfix
postkick
postlock
postlog
postmap
postqueue
postsuper
pr
pread
preadv
printcap
printenv
printf
proc
procfs
profil
protocols
prove
proxymap
ps
psed
psroff
pstruct
ptrace
publickey
pushd
puts
pwd
pwrite
pwritev
qmgr
qmqpd
quota
quotactl
radiobutton
raise
rand
ranlib
rcp
rcs
rcsclean
rcsdiff
rcsfile
rcsfreeze
rcsintro
rcsmerge
read
readelf
readlink
readonly
readv
realpath
reboot
recv
recvfrom
recvmsg
red
ree
refer
regexp
registry
regsub
rehash
remote
rename
repeat
replace
req
reset
resolver
resource
return
rev
revoke
rfcomm_sppd
rfork
rhosts
ripemd
ripemd160
rlog
rlogin
rm
rmd160
rmdir
rpc
rpcgen
rs
rsa
rsautl
rsh
rtld
rtprio
rup
ruptime
rusers
rwall
rwho
s2p
safe
sasl
sasldblistusers2
saslpasswd2
sbrk
scache
scale
scan
sched
sched_getparam
sched_getscheduler
sched_get_priority_max
sched_get_priority_min
sched_rr_get_interval
sched_setparam
sched_setscheduler
sched_yield
scon
scp
script
scrollbar
sdiff
sed
seek
select
selection
semctl
semget
semop
send
sendbug
sendfile
sendmail
sendmsg
sendto
services
sess_id
set
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setfacl
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sftp
sh
sha
sha1
sha256
shar
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shift
shmat
shmctl
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showq
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sigaction
sigaltstack
sigblock
sigmask
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sigprocmask
sigreturn
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sigvec
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size
slapadd
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slapdn
slapindex
slappasswd
slaptest
sleep
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slurpd
smbutil
smime
smtp
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socket
socketpair
sockstat
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sort
source
spawn
speed
spinbox
spkac
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split
squid
squid_ldap_auth
squid_ldap_group
squid_unix_group
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ssh
sshd_config
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stab
startslip
stat
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stop
string
strings
strip
stty
su
subst
sum
suspend
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switch
symlink
sync
sysarch
syscall
sysconftool
sysconftoolcheck
systat
s_client
s_server
s_time
tabs
tail
talk
tar
tbl
tclsh
tcltest
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tcpdump
tcpslice
tcsh
tee
tell
telltc
telnet
term
termcap
terminfo
test
texindex
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text
textdomain
tfmtodit
tftp
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threads
time
tip
tk
tkerror
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tkwait
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top
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tr
trace
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type
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until
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utf8
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wc
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what
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while
who
whoami
whois
window
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wm
write
writev
wtmp
x509
xargs
xgettext
xmlwf
xstr
xsubpp
yacc
yes
ypcat
ypchfn
ypchpass
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ypmatch
yppasswd
ypwhich
yyfix
zcat
zcmp
zdiff
zegrep
zfgrep
zforce
zgrep
zmore
znew
_exit
__syscall
 
FreeBSD/Linux/UNIX General Commands Manual
Hypertext Man Pages
getconf
 
GETCONF(1)		FreeBSD General Commands Manual 	    GETCONF(1)

NAME
     getconf -- retrieve standard configuration variables

SYNOPSIS
     getconf [-v environment] path_var file
     getconf [-v environment] system_var

DESCRIPTION
     The getconf utility prints the value of a POSIX or X/Open path or system
     configuration variable to the standard output.  If the specified variable
     is undefined, the string ``undefined'' is output.

     The first form of the command, with two mandatory arguments, retrieves
     file- and file system-specific configuration variables using pathconf(2).
     The second form, with a single argument, retrieves system configuration
     variables using confstr(3) and sysconf(3), depending on the type of vari-
     able.  As an extension, the second form can also be used to query static
     limits from <limits.h>.

     All sysconf(3) and pathconf(2) variables use the same name as the mani-
     fest constants defined in the relevant standard C-language bindings,
     including any leading underscore or prefix.  That is to say, system_var
     might be ARG_MAX or _POSIX_VERSION, as opposed to the sysconf(3) names
     _SC_ARG_MAX or _SC_POSIX_VERSION.	Variables retrieved from confstr(3)
     have the leading `_CS_' stripped off; thus, _CS_PATH is queried by a
     system_var of ``PATH''.

   Programming Environments
     The -v environment option specifies a IEEE Std 1003.1-2001 (``POSIX.1'')
     programming environment under which the values are to be queried.	This
     option currently does nothing, but may in the future be used to select
     between 32-bit and 64-bit execution environments on platforms which sup-
     port both.  Specifying an environment which is not supported on the cur-
     rent execution platform gives undefined results.

     The standard programming environments are as follows:

	   POSIX_V6_ILP32_OFF32   Exactly 32-bit integer, long, pointer, and
				  file offset.	Supported platforms: None.

	   POSIX_V6_ILP32_OFFBIG  Exactly 32-bit integer, long, and pointer;
				  at least 64-bit file offset.	Supported
				  platforms: IA32, PowerPC.

	   POSIX_V6_LP64_OFF64	  Exactly 32-bit integer; exactly 64-bit long,
				  pointer, and file offset.  Supported
				  platforms: Alpha, SPARC64.

	   POSIX_V6_LPBIG_OFFBIG  At least 32-bit integer; at least 64-bit
				  long, pointer, and file offset.  Supported
				  platforms: None.

     The command:

	   getconf POSIX_V6_WIDTH_RESTRICTED_ENVS

     returns a newline-separated list of environments in which the width of
     certain fundamental types is no greater than the width of the native C
     type long.  At present, all programming environments supported by FreeBSD
     have this property.  Several of the confstr(3) variables provide informa-
     tion on the necessary compiler and linker flags to use the standard pro-
     gramming environments described above.

EXIT STATUS
     The getconf utility exits 0 on success, and >0 if an error occurs.

EXAMPLES
     The command:

	   getconf PATH

     will display the system default setting for the PATH environment vari-
     able.

     The command:

	   getconf NAME_MAX /tmp

     will display the maximum length of a filename in the /tmp directory.

     The command:

	   getconf -v POSIX_V6_LPBIG_OFFBIG LONG_MAX

     will display the maximum value of the C type long in the
     POSIX_V6_LPBIG_OFFBIG programming environment, if the system supports
     that environment.

DIAGNOSTICS
     Use of a system_var or path_var which is completely unrecognized is con-
     sidered an error, causing a diagnostic message to be written to standard
     error.  One which is known but merely undefined does not result in an
     error indication.	The getconf utility recognizes all of the variables
     defined for IEEE Std 1003.1-2001 (``POSIX.1''), including those which are
     not currently implemented.

SEE ALSO
     pathconf(2), confstr(3), sysconf(3)

STANDARDS
     The getconf utility is expected to be compliant with IEEE Std 1003.1-2001
     (``POSIX.1'').

HISTORY
     The getconf utility first appeared in FreeBSD 5.0.

AUTHORS
     Garrett A. Wollman 

FreeBSD 6.1		      September 18, 2002		   FreeBSD 6.1
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