HelpPC 2.10	Quick Reference Utility	Copyright 1991 David Jurgens
char *getcwd( char *buf, int n )        - prototype in dir.h        - gets full path name of current working directory up to n bytes,          placed into buf        - returns buf pointer, else NULL
Esc or Alt-X to exit	getcwd	Home/PgUp/PgDn/End ←↑↓→