Printf example in bash does not create a newline

Question

Working with printf in a bash script, adding no spaces after \"\\n\" does not create a newline, whereas adding a space creates a newline, e. g.:

Answer 1

For people coming here wondering how to use newlines in arguments to printf, use %b instead of %s:

$> printf "a%sa" "\n"
a\na
$> printf "a%ba" "\n"
a
a

From the manual:

%b expand backslash escape sequences in the corresponding argument