require or include page in ruby on rails

Now i want to make just simple back End to my first Ruby application

so i want to make header and include it to all of the pages in this back
so how i can make require or include to simple Html page in ruby
(this page just i want to set some links in it )

in Php we just make page and require or include it by

how we can make that in Ruby on Rails

Have a look at partials, that should do what you want.
If you have not already done so then work through,
which is free to use online. The use of partials is covered there, as
well as lots of other good stuff.