Split sentences into separate lines

Question

I'm trying to split sentences in a file into separate lines using a shell script.

Now I would like to split the strings by !, ? or . . The output should be like this :

The file that I want to read from my_text.txt and contains

you want to learn shell script? First, you want to learn Linux command! then. you can learn shell script.

Now I would like to split the strings by " ! " or "? " or "." The output should be like this :

you want to learn shell script                 
First, you want to learn Linux command             
then           
you can learn shell script

I used this script :

while read p
do
   echo $p | tr "? ! ." "\n " 
done < my_text.txt

But the output is:

you want to learn shell script

First, you want to learn Linux command then you can learn shell script

Can somebody help?

Answer 1

This could be done in a single awk using its global substitution option as follows, written and tested with shown samples only in GNU awk. Simply globally substituting ?,!,. with new line(by default ORS(output record separator) value as new line).

awk '{gsub(/\?|!|\./,ORS)} 1' Input_file