mountpoint - see if a directory or file is a mountpoint

       Karel Zak <kzak@redhat.com>

       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/>.

util-linux 2.40.2                                  2024-04-24                                      MOUNTPOINT(1)

mountpoint checks whether the given directory or file is mentioned in the /proc/self/mountinfo file.

LIBMOUNT_DEBUG=all
           enables libmount debug output.

mountpoint has the following exit status values:

       0
           success; the directory is a mountpoint, or device is block device on --devno1
           failure; incorrect invocation, permissions or system error

       32
           failure; the directory is not a mountpoint, or device is not a block device on --devno

       mountpoint - see if a directory or file is a mountpoint

       The util-linux mountpoint implementation was written from scratch for libmount. The original version for
       sysvinit suite was written by Miquel van Smoorenburg.

-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.

       For bug reports, use the issue tracker at https://github.com/util-linux/util-linux/issues.

mount(8)

mountpoint [-d|-q] directory|filemountpoint-xdevice