mountpoint
see if a directory or file is a mountpoint
TLDR
Check if a directory is a mountpoint
Check if a directory is a mountpoint without showing any output
Show major/minor numbers of a mountpoint's filesystem
SYNOPSIS
mountpoint [-d|-q] directory|file
mountpoint -x device
DESCRIPTION
mountpoint checks whether the given directory or file is mentioned in the /proc/self/mountinfo file.
OPTIONS
-d, --fs-devno
Show the major/minor numbers of the device that is mounted on the given directory.
-q, --quiet
Be quiet - don’t print anything.
--nofollow
Do not follow symbolic link if it the last element of the directory path.
-x, --devno
Show the major/minor numbers of the given blockdevice on standard output.
-h, --help
Display help text and exit.
-V, --version
Print version and exit.
EXIT STATUS
mountpoint has the following exit status values:
0
success; the directory is a mountpoint, or device is block device on --devno
1
failure; incorrect invocation, permissions or system error
32
failure; the directory is not a mountpoint, or device is not a block device on --devno
ENVIRONMENT
LIBMOUNT_DEBUG=all
enables libmount debug output.
NOTES
The util-linux mountpoint implementation was written from scratch for libmount. The original version for sysvinit suite was written by Miquel van Smoorenburg.
AUTHORS
REPORTING BUGS
For bug reports, use the issue tracker at <https://github.com/util-linux/util-linux/issues>.
AVAILABILITY
The mountpoint command is part of the util-linux package which can be downloaded from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>.
SEE ALSO
mount(8)