Epson Apex, Руководство пользователя

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You can enter command names and parameters in either upper-
case or lowercase letters. However, you must separate command
names and parameters with delimiters; most commands require
spaces or commas as delimiters.
If you make a mistake when typing a command and you notice
it before pressing
Enter,
you can do one of two things:
Use the backspace key to back up and correct the error
Press
E
SC
to cancel the command line.
If you press
Enter
and a command line has an error in it, you see
this message:
Bad command or file name
Then MS-DOS displays the command prompt so you can try
again. Just type the correct command line and press
Enter.
Creating Files
All your data and programs are stored in files. A data file stores
information, such as words, numbers, or pictures. A program file
stores instructions that the computer can understand and
execute.
The kind of file you can create depends on the MS-DOS
command or application program you use to create it. In general,
a data file that you create using an application program is stored
in a special format. If you use a different application program to
read that file, you may encounter problems.
Once you create a file, you need to give it a name. You must
name your files in a certain format MS-DOS requires.
3-4 Using MS-DOS with Your Apex