mountpoint - Man Page

see if a directory or file is a mountpoint

Examples (TL;DR)

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.

-V,  --version

Display version information and exit.

-h,  --help

Display help text and exit.

Exit Status

Zero if the directory or file is a mountpoint, non-zero if not.

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

Karel Zak <kzak@redhat.com>

See Also

mount(8)

Availability

The mountpoint command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.

Referenced By

mount(2).

August 2019 util-linux