What does the 'rmdir' command specifically do?

The 'rmdir' command is specifically used to remove an empty directory in a file system. This means that it will only successfully delete directories that do not contain any files or subdirectories. If you attempt to use 'rmdir' on a directory that is not empty, the command will fail, indicating that the directory must be empty before it can be removed. This is an important aspect of file management, as it helps prevent accidental loss of files. Understanding the functionality of 'rmdir' is crucial for effectively managing directories in a command-line interface, especially when working with file systems where organization and structure are key.