linux - sed help: matching and replacing a literal " " (not the newline)

Question

i have a file which contains several instances of .

i would like to replace them with actual newlines, but sed doesn't recognize the .

i tried

sed -r -e 's/
/
/'
sed -r -e 's/\n/
/'
sed -r -e 's/[
]/
/'

and many other ways of escaping it.

is sed able to recognize a literal ? if so, how?

is there another program that can read the file interpreting the 's as real newlines?

Answer 1

Can you please try this

sed -i 's/\n/
/g' input_filename