NAME
umount - unmount a mounted file system
SYNOPSIS
umount [-s] special
OPTIONS
-s Unmount swapspace instead of a file system
EXAMPLES
umount /dev/fd1 # Unmount diskette 1
DESCRIPTION
A mounted file system is unmounted after the cache has been
flushed to disk. A diskette should never be removed while
it is mounted. If this happens, and is discovered before
another diskette is inserted, the original one can be
replaced without harm. Attempts to unmount a file system
holding working directories or open files will be rejected
with a 'device busy' message.
With the -s flag one can unmount swap space.
SEE ALSO
mount(1), umount(2).