What is the function of the 'rmdir' command in Linux?

• A. Copy a file
• B. Create a file
• C. Delete a directory
• D. List files in a directory

Answer: (C)

The 'rmdir' command in Linux is specifically designed to delete a directory. Its primary function is to remove empty directories from the filesystem. When you execute this command, it checks whether the specified directory is empty; if it is, the directory is deleted successfully. If the directory contains files or is not empty, the command will not execute and will return an error. This functionality is crucial for managing directories in a Linux environment, allowing users to keep their filesystem organized by removing unnecessary or obsolete directories.

The other options represent functions that are achieved through different commands in Linux. For example, copying a file is done using the 'cp' command, creating a file can be done with 'touch' or 'echo', and listing files in a directory is typically performed using the 'ls' command. Each command serves a distinct purpose within the Linux operating system, emphasizing the importance of understanding specific commands for effective file and directory management.