How can I have a newline in a string in sh?

Question

This

STR=\"Hello\\nWorld\"
echo $STR

produces as output

Hello\\nWorld

instead of

Hello
Wo         


        

Answer 1

I find the -e flag elegant and straight forward

bash$ STR="Hello\nWorld"

bash$ echo -e $STR
Hello
World

If the string is the output of another command, I just use quotes

indexes_diff=$(git diff index.yaml)
echo "$indexes_diff"