mountpoint

/bin/mountpoint [-q] [-d] /path/to/directory
/bin/mountpoint -x /dev/device

Mountpoint checks if the directory is a mountpoint.

-q

Be quiet - don't print anything.

-d

Print major/minor device number of the filesystem on stdout.

-x

Print major/minor device number of the blockdevice on stdout.

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

Symbolic links are not followed, except when the -x option is used. To force following symlinks, add a trailing slash to the path of the directory.

The name of the command is misleading when the -x option is used, but the option is useful for comparing if a directory and a device match up, and there is no other command that can print the info easily.

Miquel van Smoorenburg, miquels@cistron.nl

stat(1)