Add blank line after every result in grep

Question

my grep command looks like this zgrep -B bb -A aa \"pattern\" *

I would lke to have output as:

file1:line1
file1:line2
file1:line3
file1:pattern
file         


        

Answer 1

Pipe | any output to:

sed G

Example:

ls | sed G

If you man sed you will see

G Append's a newline character followed by the contents of the hold space to the pattern space.