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

NAME
     uummoouunntt - unmount filesystems

SYNOPSIS
     uummoouunntt [-ffvv] special | node
     uummoouunntt -aa | -AA [-ffvv] [-hh host] [-tt type]

DESCRIPTION
     The uummoouunntt 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:

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

     -AA      All the currently mounted filesystems except the root are
             unmounted.

     -ff      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.

     -hh host
             Only filesystems mounted from the specified host will be
             unmounted.  This option is implies the -AA option and, unless oth-
             erwise specified with the -tt option, will only unmount NFS
             filesystems.

     -tt 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
             action should not be taken.  For example, the uummoouunntt command:

                   umount -a -t nfs,hfs

             umounts all filesystems of the type NFS and HFS.

     -vv      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 uummoouunntt command appeared in Version 6 AT&T UNIX.

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