mountpoint:tldr:215c8

The command "mountpoint ${path-to-directory}" is used to check whether a particular directory is a mount point or not.

Here's how it works:

1. "mountpoint" is the command itself, which is used to check the status of mount points.
2. "${path-to-directory}" is a placeholder for the actual path of the directory you want to check.
   • In practice, you would replace "${path-to-directory}" with the actual path, like "/media/usb" or "/mnt/share".
   • It is important to note that the path should be an absolute path (starting from the root directory "/").

When you execute this command, the "mountpoint" command checks whether the given directory is a mount point or not. It returns an exit status (return code) indicating the result:

• If the directory is a mount point, it returns an exit status of 0 (zero).
• If the directory is not a mount point, it returns a non-zero exit status, usually 1.

This command is often used in scripts or automation workflows to determine the status of a directory before performing further actions like mounting or unmounting drives, checking availability, etc.