how to tell sed "dot match new line"

Question

I can't figure how to tell sed dot match new line:

echo -e "one two three" | sed 's/one.*two/one/m'

I expect to get:

one
three

instead I get original:

one
two
three

Answer 1

sed is line-based tool. I don't think these is an option.
You can use h/H(hold), g/G(get).

$ echo -e 'one
two
three' | sed -n '1h;1!H;${g;s/one.*two/one/p}'
one
three

Maybe you should try vim

:%s/one\_.*two/one/g