Original grep was pretty much a wrapper around sed (or actually maybe ed, I don't remember). That's why it's called g/re/p, which is the sed command to do the same thing.
Phrodo_00
Patents expire after 20 years, yes, but patents aren't copyrights. No current copyright expires in 20 years. They all expire 70 years after the death of the author (or 120 after creation in the case of corporate with for hire)
I don't know if it's that cut and dry. If you study a Operative Systems class or buy a book about them, it'll exclusively deal with the kernel.
Are reading what you write? It's linux so it isn't?
I don't get this comment. Gnome is not trying to make a walled garden, and Microsoft has taken every chance they get at making walled gardens (Windows phone, windows 8 arm, various proprietary file formats and protocols), they just haven't been very successful at it.
But it did get a UI overhaul a few years back. Seems good enough
a proper electric bike can go 45kmh as well.
There's some debate about that. E-bicycles above class 2 (with assistance/drive at over 20mph) are not allowed on a lot of bike lanes, so they're more like electric mopeds
Magic the Gathering is Turing complete but nobody's calling it a programming language. Expressiveness and purpose are probably more important for calling something a programming language.
HTML is not trying to accomplish a task but specifically displaying stuff on the screen. Like a word document, or a jpeg.
I think some distros disable using RSA by default. Might need to use it explicitly.