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UMOUNT(8)		  BSD System Manager's Manual		     UMOUNT(8)

NAME
     umount -- unmount filesystems

SYNOPSIS
     umount [-fv] special | node
     umount -a | -A [-fv] [-h host] [-t	type]

DESCRIPTION
     The umount	command	calls the unmount(2) system call to remove a special
     device or the remote node (rhost:path) from the filesystem	tree at	the
     point node.  If either special or node are	not provided, the appropriate
     information is taken from the fstab(5) file.

     The options are as	follows:

     -a	     All the filesystems described in fstab(5) are unmounted.

     -A	     All the currently mounted filesystems except the root are un-
	     mounted.

     -f	     The filesystem is forcibly	unmounted.  Active special devices
	     continue to work, but all other files return errors if further
	     accesses are attempted.  The root filesystem cannot be forcibly
	     unmounted.

     -h	host
	     Only filesystems mounted from the specified host will be un-
	     mounted.  This option is implies the -A option and, unless	other-
	     wise specified with the -t	option,	will only unmount NFS filesys-
	     tems.

     -t	type
	     Is	used to	indicate the actions should only be taken on filesys-
	     tems of the specified type.  More than one	type may be specified
	     in	a comma	separated list.	 The list of filesystem	types can be
	     prefixed with "no"	to specify the filesystem types	for which ac-
	     tion should not be	taken.	For example, the umount	command:

		   umount -a -t	nfs,hfs

	     umounts all filesystems of	the type NFS and HFS.

     -v	     Verbose, additional information is	printed	out as each filesystem
	     is	unmounted.

FILES
     /etc/fstab	 filesystem table

SEE ALSO
     unmount(2), fstab(5), mount(8)

HISTORY
     A umount command appeared in Version 6 AT&T UNIX.

4th Berkeley Distribution	  May 8, 1995	     4th Berkeley Distribution

NAME | SYNOPSIS | DESCRIPTION | FILES | SEE ALSO | HISTORY

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