Info Catalog bash: Double Quotes bash: Quoting bash: Locale Translation

bash: ANSI-C Quoting

 
 3.1.2.4 ANSI-C Quoting
 ......................
 
 Words of the form '$'STRING'' are treated specially.  The word expands
 to STRING, with backslash-escaped characters replaced as specified by
 the ANSI C standard.  Backslash escape sequences, if present, are
 decoded as follows:
 
 '\a'
      alert (bell)
 '\b'
      backspace
 '\e'
 '\E'
      an escape character (not ANSI C)
 '\f'
      form feed
 '\n'
      newline
 '\r'
      carriage return
 '\t'
      horizontal tab
 '\v'
      vertical tab
 '\\'
      backslash
 '\''
      single quote
 '\"'
      double quote
 '\?'
      question mark
 '\NNN'
      the eight-bit character whose value is the octal value NNN (one to
      three digits)
 '\xHH'
      the eight-bit character whose value is the hexadecimal value HH
      (one or two hex digits)
 '\uHHHH'
      the Unicode (ISO/IEC 10646) character whose value is the
      hexadecimal value HHHH (one to four hex digits)
 '\UHHHHHHHH'
      the Unicode (ISO/IEC 10646) character whose value is the
      hexadecimal value HHHHHHHH (one to eight hex digits)
 '\cX'
      a control-X character
 
 The expanded result is single-quoted, as if the dollar sign had not been
 present.
 

Info Catalog bash: Double Quotes bash: Quoting bash: Locale Translation