pwd
The pwd command
Original authorAT&T Bell Laboratories
DevelopersVarious open-source and commercial developers
ReleaseJune 1974
Written inC
Operating systemMultics, Unix, Unix-like, V, Plan 9, Inferno, SpartaDOS X, PANOS, Windows CE, KolibriOS
PlatformCross-platform
TypeCommand
Licensecoreutils: GPLv3+
Plan 9: MIT License

(echo:: @ )