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.


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.

mountpoint has the following exit status values:


success; the directory is a mountpoint, or device is block device on --devno


failure; incorrect invocation, permissions or system error


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


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 <>


For bug reports, use the issue tracker at

The mountpoint command is part of the util-linux package which can be downloaded from Linux Kernel Archive

2024-05-06 util-linux 2.40.1