man mountpoint (Commandes) - see if a directory is a mountpoint
NAME
mountpoint - see if a directory is a mountpoint
SYNOPSIS
/bin/mountpoint
[-q]
[-d]
/path/to/directory
/bin/mountpoint
-x
/dev/device
DESCRIPTION
Mountpoint checks if the directory is a mountpoint.
OPTIONS
- -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.
EXIT STATUS
Zero if the directory is a mountpoint, non-zero if not.
NOTES
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.
AUTHOR
Miquel van Smoorenburg, miquels@cistron.nl