bash format string
echo [option(s)][string(s)]
-n Do not print the trailing newline
-E Disable interpretation of back-slash escaped characters
-e Enable interpretation of backslash escapes
a Alert
b Backspace
c Suppress trailing newline
e Escape
f Form feed
\ backslash
n New line
r Carriage return
t Horizontal tab
v Vertical tab
echo -e "Hello nmy nname nis nJohn nDoe"
output:
Hello
my
name
is
John
Doe