Hello Dear Readers,   Today here in this series of Linux, I will start with an introduction to depth commands level experiment, so stay tuned currently, below, I will discuss an introduction to Linux and shells. Linux is an operating system like macOS or Windows. It is also the most popular Open Source and free, as in freedom, operating system. It powers the vast majority of the servers that compose the Internet. It's the base upon which everything is built. But not just that. Android is based on (a modified version of) Linux. The Linux "core" (called kernel) was born in 1991 in Finland, and it went a really long way from its humble beginnings. It went on to be the kernel of the GNU Operating System, creating the duo GNU/Linux.  There's one thing about Linux that corporations like Microsoft and Apple, or Google, will never be able to offer: the freedom to do whatever you want with your computer. They're actually going in the opposite direction, building walled g...