pwd - Wikipedia
https://en.wikipedia.org/wiki/PwdMultics had a pwd command (which was a short name of the print_wdir command) from which the Unix pwd command originated. The command is a shell builtin in most Unix shells such as Bourne shell, ash, bash, ksh, and zsh. It can be implemented easily with the POSIX C functions getcwd() or getwd(). It is also available in the operating systems SpartaDOS X, PANOS, and KolibriOS. The equivalent on