Radio Shack TRS-80 Model II Reference Manual page 48

Library Commands
COPY FILE/A TO FILE/B: 1 (DOUBLE)
This command copies FILE/A to FILE/B. TRSDOS will search all drives for
FILE/A, and will require you to have or insert a diskette named DOUBLE in
drive 1.
COpy NEWFILE TO OLDFILE {ABS}
Performs the copy even ifoLDFILE already exists, in which case its previous
contents are lost.
COpy TESTPROG TO 3
Copies the. specified file from the first drive that contains it onto drive 3,
using the file name TESTPROG.
Sample Use
Whenever a file is updated, use COpy to make a backup file on another
diskette. You can also use COpy to restructure a file for faster access. Be sure
the destination diskette is already less segmented than the source diskette;
otherwise the new file could be more segmented than the old one. (See FREE
for information on file segmentation.)
To rename a file on the same diskette, use RENAME, not COPY.
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