echo escape sequences


\a write an alert character
\b backspace
\c print line without appending a new-line
\f form-feed
\n new-line
\r carriage return
\t tab
\v vertical tab
\\ backslash
\n the 8-bit character whose ASCII code is the 1-, 2-, 3-
or 4-digit octal number n, whose first character must
be a zero.
\0num write an 8-bit value that is the zero-, one-, two- or
three-digit octal number num