Why do most employers require knowledge of Linux and not Unix?

Question

linux

Why do most employers require knowledge of Linux and not Unix?

Answer 1

Well look. I have 10 servers on ubuntu. Why do I need your knowledge on fryakha and netbsd?

Answer 2

For the same reason they require knowledge of Linux and not GNU/Linux.

Answer 3

Because linux is, of course, general knowledge of UNIX, plus a lot of specific knowledge on a specific distribution branch or even on a specific distribution. Yes, having a solid knowledge of UNIX behind you, Linux is easy to learn, but a lot of non-Linux specifics will simply be stuffed into ... a pocket.
I can say this as a person who worked on FreeBSD from 1997 to 2013 and just couldn’t tie it with a bow :) - a lot, a lot of information was stuffed into ... a pocket after switching to CentOS

Answer 4

From experience, I come across at best with hp-ux, in other cases without exception with Linux (debian\rhel\centos), rhel dominates in my case among Linux ones. And so in practice, most servers on windows and a couple on Linux. The catch is that often on these same pair of servers there is a specific hell of tons of scripts and self-written software, and the OS is far from the first freshness. Again, in my case, this is a couple of dozen rhel 6, from the general zoo there are only 2 servers on hp-ux that plow on itanium and on which the extremely proprietary alcatel-lucent software is running.
So why am I all this, knowledge of linux (ok, gnu \ linux if someone's stool burned out) is more important. motley, in the case of windows and, in my case, hp-ux (unix) everything is simpler (if legal), there are tons of meticulous multi-page manuals in which you can find almost any problem.
PS, my opinion is exclusively mine and probably will not coincide with others in other areas where the progress of technology rules, and not a harsh mossy enterprise with bearded bosses who start from experience, why change.

Answer 5

Because Linux is more common than UNIX.
UNIX itself is more dead than alive.

Answer 6

If you notice that the differences between * nix systems from each other are so insignificant, then knowing fribsd well, you can easily compress working on diesel fuel.
unix - differs primarily in license, as a result of the great popularity of Linux.
In fact, the difference is significant precisely when switching to a system from Windows, all other OSes are quite similar to each other.
If they require Linux, then they simply do not understand well that the knowledge is almost the same.
Yes, of course there is a difference, but it is also in Linux distributions.

Answer 7

Well, let's start with the fact that Unix as such does not exist, there are its descendants in the form of BSD-like ones and a couple of distributions that show you "the same" UNIX - but they are more for familiarization and development than for sale.
With Linux, in fact, everything is simple, there are enterprise-level distributions and there is specialist certification. I will calmly name two vendors who have a commercial line (RHEL and SUSE) and courses + an exam to check / improve the competence of an employee, but I have not seen anything like this in BSD.

Answer 8

Because most employers have Linux, and not some other Unix.