MMEM commands requiring <directory_name> assume the current directory if a
relative path or no path is provided. If an absolute path is provided, then it is ignored.
Query disk usage information (drive capacity, free space available) and obtain a list of
files and directories in a specified directory in the following format:
<numeric_value>,<numeric_value>,{<file_entry>}
This command returns two numeric parameters and as many strings as there are files
and directories. The first parameter indicates the total amount of storage currently
used in bytes. The second parameter indicates the total amount of storage available,
also in bytes. The <file_entry> is a string. Each <file_entry> indicates the name, type,
and size of one file in the directory list:
<file_name>,<file_type>,<file_size>
As the Windows file system has an extension that indicates file type, <file_type> is
always empty. <file_size> provides the size of the file in bytes. In case of directories,
<file_entry> is surrounded by square brackets and both <file_type> and <file_size>
are empty.