1. To make a directory in the current directory:
This creates a new directory specification in your current working directory.
2. To make a new directory in the parent directory:
This creates the directory presentations in the parent directory of the current working directory.
In effect, this creates a new directory at the same level of the file system as the current directory.
3. To make a new directory in a subdirectory:
This creates the directory amy in the subdirectory reports/january.