rmdir (Remove Directory)
When a directory is empty
You can delete an empty directory using the rmdir (ReMove DIRectory) command.
For example, to delete an empty directory named dir_a under your working directory, run the command below.
Command Line - INPUT
rmdir dir_a
When a directory is not empty
The rmdir command won't work for a non-empty directory. You need to use the rm command with the -r option like in the command below.
Command Line - INPUT
rm -r dir_a
The rm command will be explained later.