How to install Flash Player on Linux redhat (centos, fedora) via command line? (Debian, Ubuntu can be similar)

I just go to FlashPlayer website download page:
Selected Linux 64bit (i have 64bit) and then Redhat yum, it returned me download file:

First step:

So i installed that repository by command:
(only for 64bit)

alternative DL link (only for 64bit):
so the repository is installed

Second step / command is to install flash-plugin:
yum install flash-plugin
(in case of debian, ubuntu probably use apt-get install ***)

then in "Firefox / Tools / Plugins" can be Shockwave Flash plugin which is needed to play flash on websites. If plugin is not there, restart Firefox.

What about Chromium (web browser) Flash player?
Copy or symlink Flash Player .so file from Firefox directory to Chromium directory

64bit linux
ln -s /usr/lib64/mozilla/plugins/ /usr/lib64/chromium-browser/plugins/
32bit linux
ln -s /usr/lib/mozilla/plugins/ /usr/lib/chromium-browser/plugins/

in same directory like is also (which might be needed for Java....! too)