How to add text at the end of each line in Vim?

Question

In Vim, I have the following text:

key => value1
key => value2
key => value1111
key => value12
key => value1122222

I would like to add "," at the end of each line. The previous text will become the following:

key => value1,
key => value2,
key => value1111,
key => value12,
key => value1122222,

Does anyone know how to do this? Is it possible to use visual block mode to accomplish this?

Answer 1

This will do it to every line in the file:

:%s/$/,/

If you want to do a subset of lines instead of the whole file, you can specify them in place of the %.

One way is to do a visual select and then type the :. It will fill in :'<,'> for you, then you type the rest of it (Notice you only need to add s/$/,/)

:'<,'>s/$/,/