\t \r \a \b in c

\t \r \a \b \n

\n   :    new line

\t   :    tab

\a   :    alert sound

\b   :    backspace one character

\r   :     see example

\b brings the cursor one character back and overwrite its value with the character next to \b

Example :

printf("\"hello\"\n");                           : “hello”

printf("hello\b welcome\b");               : hell welcome

printf("hello,\b welcome\b ");             : hell welcom

printf("\a");                                         : alert sound

printf("he\rllo rtrty");                        :  llo