Add space between every letter

Question

How can I add spaces between every character or symbol within a UTF-8 document? E.g. 123hello! becomes 1 2 3 h e l l o !.

• I have

Answer 1

Since you have bash, I am will assume that you have access to sed. The following command line will do what you wish.

$ sed -e 's:\(.\):\1 :g' < input.txt > output.txt