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This article introduces the relevant knowledge of "how to use the findmnt command under the Linux system". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The Findmnt command is used to find the mounted file system. It is used to list installed devices, which can also be mounted or uninstalled when needed, as part of the util-linux package.

Install findmnt

The findmnt command comes from the util-linux package and is installed by default in most distributions, such as Ubuntu,Fedora,Debian

The code is as follows:

$aptitude search util-linux

I util-linux-Miscellaneous system utilities

$yum info util-linux

Basic use

The code is as follows:

$findmnt

Output in list format.

The code is as follows:

$findmnt-l

Lists the file systems mounted in fstab.

The code is as follows:

$findmnt-s

Lists mounted file systems by file type.

The code is as follows:

$findmnt-t ext4

Output in df format

Findmnt can use the "- D" or "- df" options to create an output report in df format that is free and used disk space.

The code is as follows:

$findmnt-D

SOURCE FSTYPE SIZE USED AVAIL USE% TARGET

Devtmpfs devtmpfs 994.2m 0 994.2m 0% / dev

Selinuxfs selinuxfs 0 000-/ sys/fs/selinux

Tmpfs tmpfs 1001.5m 68K 1001.4m 0% / dev/shm

Tmpfs tmpfs 1001.5m 724K 1000.8m 0% / run

Tmpfs tmpfs 1001.5M 0 1001.5m 0% / sys/fs/cgroup

/ dev/mapper/fedora-root ext4 6.5G 5.3G 811.6M 82% /

Tmpfs tmpfs 1001.5m 60K 1001.5m 0% / tmp

/ dev/sda1 ext4 476.2M 107.7M 339.6M 23% / boot

Original output

If you prefer raw-style output, use the "- r" or "--raw" options.

The code is as follows:

$findmnt-raw

TARGET SOURCE FSTYPE OPTIONS

/ sys sysfs sysfs rw,nosuid,nodev,noexec,relatime

/ proc proc proc rw,nosuid,nodev,noexec,relatime

/ dev udev devtmpfs rw,relatime,size=4069060k,nr_inodes=1017265,mode=755

/ dev/pts devpts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000

/ run tmpfs tmpfs rw,nosuid,noexec,relatime,size=816716k,mode=755

/ / dev/disk/by-uuid/6fa5a72a-ba26-4588-a103-74bb6b33a763 ext4 rw,relatime,errors=remount-ro,data=ordered

/ sys/fs/cgroup tmpfs rw,relatime,size=4k,mode=755

/ sys/fs/fuse/connections fusectl rw,relatime

/ sys/kernel/debug debugfs rw,relatime

/ sys/kernel/security securityfs rw,relatime

/ run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k

/ run/shm tmpfs rw,nosuid,nodev,relatime

/ run/user tmpfs rw,nosuid,nodev,noexec,relatime,size=102400k,mode=755

/ sys/fs/pstore pstore rw,relatime

/ media/13f35f59-f023-4d98-b06f-9dfaebefd6c1 / dev/sda8 ext4 rw,nosuid,nodev,relatime,errors=remount-ro,data=ordered

/ media/4668484A68483B47 / dev/sda5 fuseblk rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other,blksize=4096

/ proc/sys/fs/binfmt_misc binfmt_misc binfmt_misc rw,nosuid,nodev,noexec,relatime

/ sys/fs/cgroup/systemd systemd cgroup rw,nosuid,nodev,noexec,relatime,name=systemd

/ run/user/1000/gvfs gvfsd-fuse fuse.gvfsd-fuse rw,nosuid,nodev,relatime,user_id=1000,group_id=1000

Find through the source Devic

Find the file system through the source device and specify that the device path includes / does not include the "- S" option.

The code is as follows:

$findmnt-S / dev/sda1

TARGET SOURCE FSTYPE OPTIONS

/ boot / dev/sda1 ext4 rw,relatime,seclabel,data=ordered

Find through the mount point

Find the file system by mounting the directory, and specify that the directory includes / excludes the "- T /-- target" option.

The code is as follows:

$findmnt-T /

TARGET SOURCE FSTYPE OPTIONS

/ / dev/mapper/fedora-root ext4 rw,relatime,seclabel,data=ordered

$findmnt-T / media/4668484A68483B47

TARGET SOURCE FSTYPE OPTIONS

/ media/4668484A68483B47 / dev/sda5 fuseblk rw,nosuid,nodev,relatime,user_id=0

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