Question

I has such code:

def foo
  puts "foo"
end

and as result I need:

def foo
  puts "foo"
end

def bar
  puts "bar"
end

I would like to perform this in command mode (could you also refer some help?) but other solutions are also welcome.

Answer 1

To copy / paster use type : (with you cursor on def foo line)

y3yGP

It will copy the 3 lines at the end of the file. use xG where x is a line number to go at line x. (Use set number to see line number)

Then you can change foo in bar with command :

:x,ys/foo/bar/

With x the first line of the block, and y the last one 🙂

Hoping that helps you 🙂