COPY

Copies one or more files to the location you specify.

This command can  also be used  to combine files. When more than
one file  is copied,  MS-DOS displays  each filename as the file
is copied.

Note: In MS-DOS 6 or higher (including Windows 9x/Me/NT/2000), COPY 
command prompts you whether a file should be overwritten when there is 
a file with the same name of the source file in the specified location.
You can specify whether it should ask each time by setting the environment 
variable "COPYCMD". To set verification to true, type "SET COPYCMD=/-Y". 
To set verification to false, type "SET COPYCMD=/Y". This will also 
affect XCOPY command.

To copy files between different floppy disks if you have only one floppy 
disk drive, you can do the following. MS-DOS provides two virtual drive 
letters "A:" and "B:" for the same floppy disk drive, so you can type 
"COPY A:file1 B:" to copy the file to another floppy disk. MS-DOS will 
prompt you to change your floppy disk. Do not confuse the disk during 
the copying.

To get more information, please type "copy /?". If you are using 
Windows 2000 or Windows NT series or MS-DOS, you can type "help 
copy" for detailed help information.