Epson 386 사용자 설명서

Some application programs add extensions to the files you create.

These application programs use the extension to determine whether it

is a compatible data file. Avoid using the same extensions as your
application programs. Also, do not use uppercase and lowercase
letters to distinguish between files. MS-DOS does not recognize the
difference and displays all filenames in uppercase.

Certain extensions are reserved for program files. You must not use
these extensions for your data files. The reserved extensions are

.COM, .EXE, and .BAT Files with these extensions are also

sometimes called 

executable 

files.

The .BAT extension denotes a particular kind of executable file called

a 

batch 

file. Batch files can be used to automate sequences of

MS-DOS instructions. Even if you are not a programmer, you may

want to create some batch files to assist you in your work. A
particularly useful kind of batch file, called an autoexecute batch file

(or “AUTOEXEC” file ) is discussed later in this chapter.

You can use the COPY command to copy individual files or groups of

files. COPY is an internal command; you can use it any time you see
the MS-DOS command prompt. You can also use the XCOPY
command to copy individual files or groups of files. XCOPY, an
external command, is more versatile than COPY. For details about
XCOPY, see your MS-DOS Reference Manual.

You can use the COPY command to copy files in several ways:

l

You can copy individual files from a diskette or the hard disk to a

diskette or hard disk

l

You can copy a group of files using 

characters

l

You can copy 

one or more 

files and give them new names

l

You can combine or merge files into one file.

5-6

Using MS-DOS with 

Equity 386