COPY is a file manipulation program.  See COPY.RPH[S,DOC].
There are several monitor commands that run COPY:
COPY    <destination>←<source>		moves a file
DELETE	<source>			deletes a file
DIRECTORY				types the file directory
LIST	<source>			prints a file on the Line Printer
TYPE	<source>			types a file on the user's terminal

There are lots more commands and switches. See the Copy manual.