Bash Lesson

class Bar
    include Foo
end
class Baz < Bar
    p ancestors
      p included_modules
        p superclass
end

[root@fc9 bash]# mkdir -p a/{lib,src,doc/{html,pdf,txt}}/{s_a,s_b}
[root@fc9 bash]# ls
a
[root@fc9 bash]# find ./
./
./a
./a/doc
./a/doc/txt
./a/doc/txt/s_a
./a/doc/txt/s_b
./a/doc/pdf
./a/doc/pdf/s_a
./a/doc/pdf/s_b
./a/doc/html
./a/doc/html/s_a
./a/doc/html/s_b
./a/src
./a/src/s_a
./a/src/s_b
./a/lib
./a/lib/s_a
./a/lib/s_b
[root@fc9 bash]#