Documentation made easier
mountpoint − 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.
−−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.
−V, −−version
Display version information and exit.
−h, −−help
Display help text and exit.
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
LIBMOUNT_DEBUG=all
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 <kzak@redhat.com>
mount(8)
For bug reports, use the issue tracker at <https://github.com/karelzak/util−linux/issues>.
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/>.