UPDATE(8)UPDATE(8)NAMEupdate - periodically update the super block
SYNOPSIS
/usr/etc/update
DESCRIPTION
Update is a program that executes the sync(2) primitive every 30
seconds. This insures that the file system is fairly up to date in
case of a crash. This command should not be executed directly, but
should be executed out of the initialization shell command file.
SEE ALSOsync(2), sync(8), init(8), rc(8)7th Edition April 27, 1985 UPDATE(8)