Index:
IPXrouted(8)MAKEDEV(8)
ac(8)
accton(8)
acpiconf(8)
acpidb(8)
acpidump(8)
adding_user(8)
adduser(8)
adjkerntz(8)
amd(8)
amq(8)
ancontrol(8)
apm(8)
apmconf(8)
apmd(8)
arlcontrol(8)
arp(8)
asf(8)
atacontrol(8)
atm(8)
atmarpd(8)
atmconfig(8)
atrun(8)
authpf(8)
badsect(8)
bcmfw(8)
boot(8)
boot0cfg(8)
boot_i386(8)
bootparamd(8)
bootpd(8)
bootpef(8)
bootpgw(8)
bootptest(8)
bsdlabel(8)
bt3cfw(8)
btxld(8)
burncd(8)
camcontrol(8)
catman.local(8)
ccdconfig(8)
chat(8)
chkgrp(8)
chkprintcap(8)
chown(8)
chroot(8)
clri(8)
comcontrol(8)
comsat(8)
config(8)
conscontrol(8)
crash(8)
cron(8)
cvsbug(8)
daemon(8)
dconschat(8)
devd(8)
devfs(8)
devinfo(8)
dhclient-script(8)
dhclient(8)
digictl(8)
diskinfo(8)
disklabel(8)
diskless(8)
dmesg(8)
dnssec-keygen(8)
dnssec-signzone(8)
dump(8)
dumpfs(8)
dumpon(8)
editmap(8)
edquota(8)
extattrctl(8)
faithd(8)
fastboot(8)
fasthalt(8)
fdcontrol(8)
fdisk(8)
ffsinfo(8)
fingerd(8)
fixmount(8)
flowctl(8)
fore_dnld(8)
fsck(8)
fsck_4.2bsd(8)
fsck_ffs(8)
fsck_msdosfs(8)
fsck_ufs(8)
fsdb(8)
fsinfo(8)
fsirand(8)
ftp-proxy(8)
ftpd(8)
fwcontrol(8)
gbde(8)
gconcat(8)
geom(8)
getextattr(8)
getfmac(8)
getpmac(8)
getty(8)
ggatec(8)
ggated(8)
ggatel(8)
glabel(8)
gmirror(8)
gnop(8)
gpt(8)
graid3(8)
growfs(8)
gshsec(8)
gstat(8)
gstripe(8)
halt(8)
hccontrol(8)
hcsecd(8)
hcseriald(8)
hlfsd(8)
hprop(8)
hpropd(8)
iasl(8)
ifconfig(8)
ifmcstat(8)
ilmid(8)
inetd(8)
init(8)
intro(8)
iostat(8)
ip6addrctl(8)
ip6fw(8)
ipf(8)
ipfs(8)
ipfstat(8)
ipfw(8)
ipmon(8)
isdnd(8)
isdndebug(8)
isdndecode(8)
isdnmonitor(8)
isdnphone(8)
isdntel(8)
isdntelctl(8)
isdntrace(8)
ispcvt(8)
jail(8)
jexec(8)
jls(8)
kadmin(8)
kadmind(8)
kdc(8)
kerberos(8)
keyserv(8)
kgmon(8)
kgzip(8)
kldconfig(8)
kldload(8)
kldstat(8)
kldunload(8)
kldxref(8)
kpasswdd(8)
kstash(8)
ktrdump(8)
ktutil(8)
l2control(8)
l2ping(8)
lastlogin(8)
ldconfig(8)
loader.4th(8)
loader(8)
locate.updatedb(8)
lockd(8)
lpc(8)
lpd(8)
lptcontrol(8)
lsextattr(8)
lwresd(8)
mail.local(8)
mailstats(8)
mailwrapper(8)
makekey(8)
makemap(8)
makewhatis.local(8)
manctl(8)
map-mbone(8)
mdconfig(8)
mdmfs(8)
memcontrol(8)
mergemaster(8)
mixer(8)
mk-amd-map(8)
mknetid(8)
mknod(8)
mksnap_ffs(8)
mkuzip(8)
mld6query(8)
mlxcontrol(8)
mount(8)
mount_cd9660(8)
mount_devfs(8)
mount_ext2fs(8)
mount_fdescfs(8)
mount_linprocfs(8)
mount_mfs(8)
mount_msdosfs(8)
mount_nfs(8)
mount_nfs4(8)
mount_ntfs(8)
mount_nullfs(8)
mount_nwfs(8)
mount_portalfs(8)
mount_procfs(8)
mount_smbfs(8)
mount_std(8)
mount_udf(8)
mount_umapfs(8)
mount_unionfs(8)
mountd(8)
moused(8)
mrinfo(8)
mrouted(8)
mtest(8)
mtrace(8)
mtree(8)
named-checkconf(8)
named-checkzone(8)
named(8)
named.reconfig(8)
named.reload(8)
natd(8)
ndiscvt(8)
ndp(8)
newfs(8)
newfs_msdos(8)
newkey(8)
newsyslog(8)
nextboot(8)
nfsd(8)
nfsiod(8)
ngctl(8)
nghook(8)
nis(8)
nologin(8)
nos-tun(8)
nsupdate(8)
ntpd(8)
ntpdate(8)
ntpdc(8)
ntpq(8)
ntptime(8)
ntptrace(8)
pac(8)
pam_chroot(8)
pam_deny(8)
pam_echo(8)
pam_exec(8)
pam_ftpusers(8)
pam_group(8)
pam_guest(8)
pam_krb5(8)
pam_ksu(8)
pam_lastlog(8)
pam_login_access(8)
pam_nologin(8)
pam_opie(8)
pam_opieaccess(8)
pam_passwdqc(8)
pam_permit(8)
pam_radius(8)
pam_rhosts(8)
pam_rootok(8)
pam_securetty(8)
pam_self(8)
pam_ssh(8)
pam_tacplus(8)
pam_unix(8)
pccardc(8)
pccardd(8)
pciconf(8)
periodic(8)
pfctl(8)
pflogd(8)
picobsd(8)
ping(8)
ping6(8)
pnpinfo(8)
ppp(8)
pppctl(8)
pppd(8)
pppoed(8)
pppstats(8)
praliases(8)
procctl(8)
pstat(8)
pw(8)
pwd_mkdb(8)
pxeboot(8)
quot(8)
quotacheck(8)
quotaoff(8)
quotaon(8)
rarpd(8)
raycontrol(8)
rbootd(8)
rc(8)
rc.atm(8)
rc.d(8)
rc.early(8)
rc.firewall(8)
rc.local(8)
rc.network(8)
rc.pccard(8)
rc.sendmail(8)
rc.serial(8)
rc.shutdown(8)
rc.subr(8)
rcorder(8)
rdump(8)
reboot(8)
renice(8)
repquota(8)
rescue(8)
restore(8)
revnetgroup(8)
rexecd(8)
rfcomm_pppd(8)
rip6query(8)
rlogind(8)
rmail(8)
rmextattr(8)
rmt(8)
rmuser(8)
rndc-confgen(8)
rndc(8)
route(8)
route6d(8)
routed(8)
rpc.lockd(8)
rpc.rquotad(8)
rpc.rstatd(8)
rpc.rusersd(8)
rpc.rwalld(8)
rpc.sprayd(8)
rpc.statd(8)
rpc.umntall(8)
rpc.yppasswdd(8)
rpc.ypxfrd(8)
rpcbind(8)
rpcinfo(8)
rrenumd(8)
rrestore(8)
rshd(8)
rtadvd(8)
rtquery(8)
rtsol(8)
rtsold(8)
rwhod(8)
sa(8)
savecore(8)
sconfig(8)
scspd(8)
sdpcontrol(8)
sdpd(8)
securelevel(8)
sendmail(8)
setextattr(8)
setfmac(8)
setfsmac(8)
setkey(8)
setpmac(8)
sftp-server(8)
showmount(8)
shutdown(8)
sicontrol(8)
slattach(8)
slip(8)
sliplogin(8)
slstat(8)
smbmsg(8)
smrsh(8)
spkrtest(8)
spppcontrol(8)
spray(8)
ssh-keysign(8)
sshd(8)
sticky(8)
strfile(8)
sunlabel(8)
swapctl(8)
swapinfo(8)
swapoff(8)
swapon(8)
sync(8)
sysctl(8)
sysinstall(8)
syslogd(8)
talkd(8)
tcpd(8)
tcpdchk(8)
tcpdmatch(8)
tcpdrop(8)
telnetd(8)
tftpd(8)
timed(8)
timedc(8)
traceroute(8)
traceroute6(8)
trpt(8)
tunefs(8)
tzsetup(8)
ugidfw(8)
umount(8)
unstr(8)
updatedb(8)
usbd(8)
usbdevs(8)
verify_krb5_conf(8)
vinum(8)
vipw(8)
vmstat(8)
vnconfig(8)
watch(8)
watchdog(8)
watchdogd(8)
wicontrol(8)
wire-test(8)
wlconfig(8)
yp(8)
yp_mkdb(8)
ypbind(8)
ypinit(8)
yppoll(8)
yppush(8)
ypserv(8)
ypset(8)
ypxfr(8)
zdump(8)
zic(8)
zzz(8)
sync(8)
NAME
sync -- force completion of pending disk writes (flush cache)
SYNOPSIS
sync
DESCRIPTION
The sync utility can be called to ensure that all disk writes have been completed before the processor is halted in a way not suitably done by reboot(8) or halt(8). Generally, it is preferable to use reboot(8) or halt(8) to shut down the system, as they may perform additional actions such as resynchronizing the hardware clock and flushing internal caches before performing a final sync. The sync utility utilizes the sync(2) function call.
SEE ALSO
fsync(2), sync(2), syncer(4), halt(8), reboot(8)
HISTORY
A sync utility appeared in Version 4 AT&T UNIX. FreeBSD 5.4 May 31, 1993 FreeBSD 5.4
SPONSORED LINKS
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