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

This might work for you:

echo '1 23h ello  !   ' |  sed 's/\s*/ /g;s/^\s*\(.*\S\)\s*$/\1/;l'
1 2 3 h e l l o !$
1 2 3 h e l l o !

In retrospect a far better solution:

sed 's/\B/ /g' file

Replaces the space between letters with a space.