From MorphOS Library
Clip - Manages clipboard contents
FILE, U=UNIT/K/N, STR=STRING/K, STORE/S, SHIFT/S
FILE - A filename to read from or write to. STRING - A string to be stored in the clipboard. UNIT - The unit number of the clipboard unit to use. STORE - Together with FILE determines if file should be read or written to. SHIFT - Does the same as STORE, but outputs old clipboard contents.