MOUNTPOINT(1)

NAME
mountpoint - see if a directory or file is a mountpoint

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.

-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.

AUTHOR

Karel Zak <kzak@redhat.com>

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.

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/.