The correct answer is A. rmdir.
rmdir is a command-line utility for removing empty directories. It is available on most Unix-like operating systems, including Linux, macOS, and FreeBSD.
To use rmdir, you must first navigate to the directory that you want to remove. You can do this by using the cd command. For example, to remove the directory /tmp/my-directory, you would type the following command:
cd /tmp/my-directory
Once you are in the directory that you want to remove, you can use the rmdir command. For example, to remove the directory /tmp/my-directory, you would type the following command:
rmdir my-directory
If the directory is not empty, you will receive an error message. To remove a directory that is not empty, you must first remove all of the files and subdirectories that it contains.
The following are the other options in the question:
- B. rd is not a valid command.
- C. remove is a command that can be used to remove files, but it cannot be used to remove directories.
- D. rdir is not a valid command.
- E. None of the above is the correct answer.