current pwd in prompt

[Guy Harris]

> Summary: don't have to run the pwd program

Who said anything about running the "pwd" program?

	gorodish$ type pwd
	pwd is an exported alias for print - $PWD
	gorodish$ type print
	print is a built-in command

(Version 02/21/85c) I'd be *very* surprised if references to "$PWD" were "a
zillion times faster" than calls to the "pwd" command.
	Guy Harris
	{ihnp4, decvax, seismo, decwrl, ...}!sun!guy
	guy at sun.com