NAME

sync − update the super block

SYNOPSIS

sync

DESCRIPTION

Sync executes the sync system primitive.  Sync can be called to insure all disk writes have been completed before the processor is halted in a way not suitably done by reboot(8) or halt(8).

See sync(2) for details on the system primitive.

EXAMPLE

sync

should be typed to flush all internal disk buffers, before bringing down the system. 

SEE ALSO

sync(2), reboot(8), update(8)

7th Edition  —  1/22/82