NAME

sync − update the super block

SYNOPSIS

sync

DESCRIPTION

sync forces any information on its way to the disk to be written out immediately.  sync can be called to ensure that all disk writes are completed before the processor is halted abnormally. 

SEE ALSO

halt(8), reboot(8), cron(8), fsck(8)

Sun Release 3.0β  —  Last change: 1 November 1983