mountpoint (1) Linux Manual Page
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.
–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
mountpoint has the following exit status values: 0
- success; the directory is a mountpoint, or device is block device on –devno
1
- failure; incorrect invocation, permissions or system error
32
- failure; the directory is not a mountpoint, or device is not a block device on –devno
Environment
LIBMOUNT_DEBUG=all- enables libmount debug output.