To open files in Grep's output to Vim's -o -mode

Question

How can you put a list of files to Vim\'s -o -mode?

I have a list of files as Grep\'s output. I run unsuccessfully

1

grep -il          


        

Answer 1

Second one works for me. Third too, although you get only one file visible at the start. 4 is the same as 2 in most cases. First and last should not work by design.