volume:unmount

The command umount ${mounted_directory} is used to unmount a file system that is currently mounted on a directory. The ${mounted_directory} is a placeholder for the actual directory path where the file system is mounted.

When a file system is mounted, it means that it is connected to a specific directory in the file system hierarchy, allowing users and programs to access its contents. However, before modifying the mounted file system or disconnecting the storage device, it needs to be unmounted to ensure data integrity.

By running the umount command followed by the directory where the file system is mounted, the operating system will detach the file system from that location, making the contents inaccessible until it is mounted again.

For instance, if a file system is currently mounted on the directory /mnt/data, the command umount /mnt/data would unmount the file system, and the connection between the file system and the directory would be severed.