Final answer:
The command 'ls -aR' is used to display all files, including hidden ones, in the current directory and subdirectories.
Step-by-step explanation:
The command used to display all the files including hidden files in your current directory and its subdirectories is ls -aR. The ls command lists the contents of directories, while the -a option includes hidden files (files starting with a .) in the list. The -R option tells ls to list subdirectories recursively. If you want to only include hidden files in the current directory, you would use ls -a, and to only list subdirectories recursively without hidden files, you would use ls -R. The ls -l option is used to display detailed information in a long format, which is not what the question is asking for.