How to move output after dot to new line?

Question

bash

grep linux get sentences from file

grep -E '[[:upper:][:lower:][:punct:] ]*\.' sentence.txt

Tell me how to make a conclusion after a dot on a new line?

I tried tr, it wraps, but it eats up the point and adds a space.

Answer 1

Output to standard stream:
sed -e 's/\.\s/\.\n/g' sentence.txt
Replacement in file:
sed -i 's/\.\s/\.\n/g' sentence.txt

Answer 2

You can add a gray line where there is no hyphen after the dot:

grep -E '[[:upper:][:lower:][:punct:] ]*\.' sentence.txt|sed 's/\.\s/.\n/g'

In general, your regular expression is incomprehensible. Double upper? no split inside string?