FINDMNT(8)						       System Administration							FINDMNT(8)

NAME

       findmnt - find a filesystem

SYNOPSIS

       findmnt [options]

       findmnt [options] device|mountpoint

       findmnt [options] [--source] device [--target] mountpoint

DESCRIPTION

       findmnt	will  list  all  mounted filesytems or search for a filesystem.  The findmnt command is able to search in /etc/fstab, /etc/mtab or
       /proc/self/mountinfo.  If device or mountpoint is not given, all filesystems are shown.

       The device may be specified by device name, maj:min, filesystem LABEL or UUID, or partition PARTUUID or PARTLABEL.  Note that a device name
       may be interpreted as a mountpoint (and vice versa) if the --target or --source options are not specified.

       The command prints all mounted filesystems in the tree-like format by default.

OPTIONS

       -A, --all
	      Disable all built-in filters and print all filesystems.

       -a, --ascii
	      Use ascii characters for tree formatting.

       -c, --canonicalize
	      Canonicalize all printed paths.

       -D, --df
	      Imitate  the  output  of	df(1).	 This option is equivalent to -o SOURCE,FSTYPE,SIZE,USED,AVAIL,USE%,TARGET but excludes all pseudo
	      filesystems.  Use --all to print all filesystems.

       -d, --direction word
	      The search direction, either forward or backward.

       -e, --evaluate
	      Convert all tags (LABEL, UUID, PARTUUID or PARTLABEL) to the device names.

       -F, --tab-file path
	      Search in an alternative file.  If used with --fstab, --mtab or --kernel, then it overrides the default paths.   If  specified  more
	      than once, then tree-like output is disabled (see the --list option).

       -f, --first-only
	      Print the first matching filesystem only.

       -h, --help
	      Print help and exit.

       -i, --invert
	      Invert the sense of matching.

       -k, --kernel
	      Search in /proc/self/mountinfo.  The output is in the tree-like format.  This is the default.

       -l, --list
	      Use  the list output format.  This output format is automatically enabled if the output is restricted by the -t, -O, -S or -T option
	      and the option --submounts is not used or if more that one source file (the option -F) is specified.

       -m, --mtab
	      Search in /etc/mtab.  The output is in the list format (see --list).

       -N, --task tid
	      Use alternative namespace /proc/<tid>/mountinfo rather than the default /proc/self/mountinfo.  If the option is specified more  than
	      once, then tree-like output is disabled (see the --list option).	See also the unshare(1) command.

       -n, --noheadings
	      Do not print a header line.

       -O, --options list
	      Limit  the  set of printed filesystems.  More than one option may be specified in a comma-separated list.  The -t and -O options are
	      cumulative in effect.  It is different from -t in that each option is matched exactly; a leading no at the beginning does  not  have
	      global meaning.  The "no" can used for individual items in the list.  The "no" prefix interpretation can be disabled by "+" prefix.

       -o, --output list
	      Define  output  columns.	 See  the --help output to get a list of the currently supported columns.  The TARGET column contains tree
	      formatting if the --list or --raw options are not specified.

	      The default list of columns may be extended if list is specified in the format +list (e.g. findmnt -o +PROPAGATION).

       -P, --pairs
	      Use key="value" output format.  All potentially unsafe characters are hex-escaped (x<code>).

       -p, --poll[=list]
	      Monitor changes in the /proc/self/mountinfo file.  Supported actions are: mount, umount, remount and move.  More than one action may
	      be specified in a comma-separated list.  All actions are monitored by default.

	      The time for which --poll will block can be restricted with the --timeout or --first-only options.

	      The  standard columns always use the new version of the information from the mountinfo file, except the umount action which is based
	      on the original information cached by findmnt(8).  The poll mode allows to use extra columns:

	      ACTION mount, umount, move or remount action name; this column is enabled by default

	      OLD-TARGET
		     available for umount and move actions

	      OLD-OPTIONS
		     available for umount and remount actions

       -R, --submounts
	      Print recursively all submounts for the selected filesystems.  The restrictions defined by options -t, -O, -S,  -T  and  --direction
	      are  not applied to submounts.  All submounts are always printed in tree-like order.  The option enables the tree-like output format
	      by default.  This option has no effect for --mtab or --fstab.

       -r, --raw
	      Use raw output format.  All potentially unsafe characters are hex-escaped (x<code>).

       -S, --source spec
	      Explicitly define the mount source.  Supported are device, maj:min, LABEL=, UUID=, PARTLABEL= or PARTUUID=.

       -s, --fstab
	      Search in /etc/fstab.  The output is in the list format (see --list).

       -T, --target dir
	      Explicitly define the mount target (mountpoint directory).

       -t, --types list
	      Limit the set of printed filesystems.  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 on which no action should be taken.  For more details see mount(8).

       -u, --notruncate
	      Do not truncate text in columns.	The default is to not truncate the TARGET, SOURCE, UUID, LABEL, PARTUUID, PARTLABEL columns.  This
	      option disables text truncation also in all other columns.

       -v, --nofsroot
	      Do not print a [/dir] in the SOURCE column for bind-mounts or btrfs subvolumes.

       -w, --timeout milliseconds
	      Specify an upper limit on the time for which --poll will block, in milliseconds.

EXAMPLES

       findmnt --fstab -t nfs
	      Prints all NFS filesystems defined in /etc/fstab.

       findmnt --fstab /mnt/foo
	      Prints all /etc/fstab filesystems where the mountpoint directory is /mnt/foo.  It also  prints  bind  mounts  where  /mnt/foo  is  a
	      source.

       findmnt --fstab --target /mnt/foo
	      Prints all /etc/fstab filesystems where the mountpoint directory is /mnt/foo.

       findmnt --fstab --evaluate
	      Prints all /etc/fstab filesystems and converts LABEL= and UUID= tags to the real device names.

       findmnt -n --raw --evaluate --output=target LABEL=/boot
	      Prints only the mountpoint where the filesystem with label "/boot" is mounted.

       findmnt --poll --target /mnt/foo
	      Monitors mount, unmount, remount and move on /mnt/foo.

       findmnt --poll=umount --first-only --target /mnt/foo
	      Waits for /mnt/foo unmount.

       findmnt --poll=remount -t ext3 -O ro
	      Monitors remounts to read-only mode on all ext3 filesystems.

ENVIRONMENT

       LIBMOUNT_FSTAB=<path>
	      overrides the default location of the fstab file

       LIBMOUNT_MTAB=<path>
	      overrides the default location of the mtab file

       LIBMOUNT_DEBUG=0xffff
	      enables debug output

AUTHORS

       Karel Zak <kzak@redhat.com>

SEE ALSO

       mount(8), fstab(5)

AVAILABILITY

       The findmnt command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

util-linux							    April 2010								FINDMNT(8)