findmnt from util-linux 2.27.1

Usage: findmnt [options] findmnt [options] <device> | <mountpoint> findmnt [options] <device> <mountpoint> findmnt [options] [--source <device>] [--target <path> | --mountpoint <dir>] Find a (mounted) filesystem. Options: -s, --fstab search in static table of filesystems -m, --mtab search in table of mounted filesystems -k, --kernel search in kernel table of mounted filesystems (default) -p, --poll[=<list>] monitor changes in table of mounted filesystems -w, --timeout <num> upper limit in milliseconds that --poll will block -A, --all disable all built-in filters, print all filesystems -a, --ascii use ASCII chars for tree formatting -b, --bytes print sizes in bytes rather than in human readable format -C, --nocanonicalize don't canonicalize when comparing paths -c, --canonicalize canonicalize printed paths -D, --df imitate the output of df(1) -d, --direction <word> direction of search, 'forward' or 'backward' -e, --evaluate convert tags (LABEL,UUID,PARTUUID,PARTLABEL) to device names -F, --tab-file <path> alternative file for -s, -m or -k options -f, --first-only print the first found filesystem only -i, --invert invert the sense of matching -J, --json use JSON output format -l, --list use list format output -N, --task <tid> use alternative namespace (/proc/<tid>/mountinfo file) -n, --noheadings don't print column headings -O, --options <list> limit the set of filesystems by mount options -o, --output <list> the output columns to be shown -P, --pairs use key="value" output format -R, --submounts print all submounts for the matching filesystems -r, --raw use raw output format -S, --source <string> the device to mount (by name, maj:min, LABEL=, UUID=, PARTUUID=, PARTLABEL=) -T, --target <path> the path to the filesystem to use -M, --mountpoint <dir> the mountpoint directory -t, --types <list> limit the set of filesystems by FS types -U, --uniq ignore filesystems with duplicate target -u, --notruncate don't truncate text in columns -v, --nofsroot don't print [/dir] for bind or btrfs mounts -h, --help display this help and exit -V, --version output version information and exit Available columns: SOURCE source device TARGET mountpoint FSTYPE filesystem type OPTIONS all mount options VFS-OPTIONS VFS specific mount options FS-OPTIONS FS specific mount options LABEL filesystem label UUID filesystem UUID PARTLABEL partition label PARTUUID partition UUID MAJ:MIN major:minor device number ACTION action detected by --poll OLD-TARGET old mountpoint saved by --poll OLD-OPTIONS old mount options saved by --poll SIZE filesystem size AVAIL filesystem size available USED filesystem size used USE% filesystem use percentage FSROOT filesystem root TID task ID ID mount ID OPT-FIELDS optional mount fields PROPAGATION VFS propagation flags FREQ dump(8) period in days [fstab only] PASSNO pass number on parallel fsck(8) [fstab only] For more details see findmnt(8).