Find Linux Os Version Command

The matrix, programming, networking and computing.?

I am new to computers, and much interest, it all started by the game maker and I'm very good, but I have a question from a friend of mine first, and now I am interested in the answer for him. "What kind of program or operating system Neo in the movie is the matrix green text? "I know a command line similar to the Windows command or something in Linux, but I was hoping I noticed someone else, like, what you are doing with it and its applications / version Thanks guys, etc.

Neo is, in fact, the use of Nmap. This is real http://www.nmap.org Program

Mac OS X 10.3.4 “Panther” on Windows XP