- So welcome to Linux.
Before we are going to start,
let's try to understand what Linux really is.
Linux originates from UNIX.
And UNIX was the leading operating systems
invented in the early 1970s,
and it was leading all the way
throughout the end of the 1990s.
Linux fits in a movement started
by the Free Software Foundation.
Free Software Foundation was created
because Unix became really commercial.
In the beginning, in the early years of Unix,
there wasn't really arranged anything
for licenses and so on.
And already in the 1970s and even more in the 1980s,
Unix became very commercial and expensive.
And as a counter movement to that,
Free Software Foundation started.
The Free Software Foundation had a mission
to provide software for free
because everybody should be able to use software
to develop their skills.
A part of the Free Software Foundation is GNU,
which stands for GNU not Unix.
And the mission of GNU is to provide free tools for Unix.
And already in the 1980s
many free tools were already launched.
So you can imagine that on a commercial Unix distribution
such as Sun Solaris, for instance,
there was this utility like LS.
And GNU has reworked all of these utilities
with an open source license.
An open source is what it is all about.
Source code is free.
sort of software is free for everybody.
Now in the year, 1992,
Linus Torvalds added the Linux kernel to GNU.
And that made the GNU system complete.
So by combining the Linux kernel
with other GNU tools that already existed
is as possible to install Linux
as an actual operating system.
In the early days, in order to do the installation,
you needed to compile everything yourself
and gather everything yourself.
That was not really doable.
And for that reason already in the very early years
the distributions were provided.
And amongst the very first of the distributions
were Yggdrasil and Slackware.
And later other distributions were founded as well.
In the next video,
I will tell you about these other distributions
and what the Linux distribution landscape
looks like nowadays.