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/fstab.d,
/etc/mtab or
/proc/self/mountinfo. If
device or
mountpoint is not given, all filesystems are shown.
The command prints all mounted filesystems in the tree-like format by default.
OPTIONS¶
- -h, --help
- Print help and exit.
- -s, --fstab
- Search in /etc/fstab and /etc/fstab.d. The
output is in the list format (see --list).
- -m, --mtab
- Search in /etc/mtab. The output is in the list
format (see --list).
- -k, --kernel
- Search in /proc/self/mountinfo. The output is in the
tree-like format. This is the default.
- -c, --canonicalize
- Canonicalize all printed paths.
- -d, --direction word
- The search direction - forward or
backward.
- -e, --evaluate
- Convert all tags (LABEL or UUID) to the device names.
- -f, --first-only
- Print the first matching filesystem only.
- -i, --invert
- Invert the sense of matching.
- -l, --list
- Use the list output format. This output format is
automatically enabled if the output is restricted by -t, -O,
-S or -T option and the option --submounts is not
used.
- -v, --nofsroot
- Do not print a [/dir] in the SOURCE column for bind-mounts
or btrfs subvolumes.
- -n, --noheadings
- Do not print a header line.
- -u, --notruncate
- Do not truncate text in columns. The default is to not
truncate the TARGET, SOURCE, UUID and LABEL
columns. This option disables text truncation also in all other
columns.
- -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 of
one option does not negate the rest. For more details see
mount(8).
- -o, --output list
- Define output columns. Currently supported are
ACTION, SOURCE, TARGET, OLD-TARGET,
FSTYPE, OPTIONS, OLD-OPTIONS, VFS-OPTIONS,
FS-OPTIONS, LABEL and UUID. The TARGET column
contains tree formatting if the --list or --raw options are
not specified.
- -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, --raw
- Use raw output format.
- -a, --ascii
- Use ascii characters for tree formatting.
- -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).
- -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.
- -S, --source spec
- Explicitly define the mount source. Supported are
device, LABEL= and UUID=.
- -T, --target dir
- Explicitly define the mount target (mountpoint
directory).
- -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, umount, remount and move on /mnt/foo.
- findmnt --poll=umount --first-only --target
/mnt/foo
- Waits for /mnt/foo umount.
- findmnt --poll=remount -t ext3 -O ro
- Monitors remounts to read-only mode on all ext3
filesystems.
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/.