Insert newline (\n) using sed

Question

I am trying to scrub some lists into a properly formatted CSV file for database import.

My starting file, looks something like this with what is supposed to be each &

Answer 1

The following works on Oracle Linux, x8664:

$ echo 'foobar' | sed 's/foo/foo\n/'
foo
bar

If you need it to match more than once per line, you'll need to place a g at the end, as in:

$ echo 'foobarfoobaz' | sed 's/foo/foo\n/g'
foo
barfoo
baz