ls
Long file listing with ls --color=auto -l in Linux showing various modes, date formats, colors and appended indicators (executables and directories).
Original authorscoreutils: Richard Stallman and David MacKenzie
DevelopersVarious open-source and commercial developers
Written inC
Operating systemMultics, Unix, Unix-like, Plan 9, Inferno, MSX-DOS
TypeCommand
Licensecoreutils: GPLv3+
BusyBox: GPL-2.0-only
Toybox: 0BSD
Plan 9: MIT License

(echo:: @ )