Bash quoting with ANSI-C style

\a alert (bell) \b backspace
\e an escape character \f form feed
\n newline \r carriage return
\t horizontal tab \v vertical tab
\\ backslash \` single quote
\nnn octal value of characters ( see [http://www.asciitable.com/ ASCII table] )

\xnn hexadecimal value of characters ( see [http://www.asciitable.com/ ASCII table] )