Escape Sequences Descriptions (ASCII Name)
\t Tab
\n Newline
\r Carriage return
\f Form feed
\b Backspace
\a Alarm/bell
\e Escape
\033 Octal character
\xff Hexadecimal character
\c[ Control character
\l Next character is converted to lowercase
\u Next character is converted to uppercase
\L Next characters are converted to lowercase until \E is found
\U Next characters are converted to uppercase until \E is found
\Q Backslash all following nonalphanumeric characters until \E is found
\E Ends upper- or lowercase conversion started with \L or \U
\\ Backslash