see if a directory or file is a mountpoint
mountpoint [-d|-q] directory | file
mountpoint -x device
mountpoint checks whether the given directory or file is mentioned in the /proc/self/mountinfo file.
- -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.
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.
- -V, --version
Display version information and exit.
- -h, --help
Display help text and exit.
Zero if the directory or file is a mountpoint, non-zero if not.
enables libmount debug output.
The util-linux mountpoint implementation was written from scratch for libmount. The original version for sysvinit suite was written by Miquel van Smoorenburg.
Karel Zak <firstname.lastname@example.org>
The mountpoint command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.