nl
Write a newline
Remarks
nl/0 causes a carriage-return/line-feed sequence to be sent to the current write device. If the newline is to be produced in connection with other output, the character '\n'--as a single character or as part of a string--does the same.
Example
write("Hello"),nl,write("there."),nl, write("And this\n is another\n way to do\n newlines").