NAME

update − periodically flush the buffer pool

SYNOPSIS

update [interval]

DESCRIPTION

update is a program that executes the sync(2) system call primitive periodically at a specified interval in seconds.  If the interval is not specified, the default interval is 30 seconds.  This insures that the file system is fairly up to date in case of a system crash.  This command should not be executed directly, but should be initiated from /etc/inittab. 

SEE ALSO

sync(1), sync(2), init(8)

  —  30 September 1989