printf format [arguments ...]

     The printf utility formats and prints its arguments, after the first, under control of the format.  The
     format is a character string which contains three types of objects: plain characters, which are simply
     copied to standard output, character escape sequences which are converted and copied to the standard
     output, and format specifications, each of which causes printing of the next successive argument.

     The arguments after the first are treated as strings if the corresponding format is either c, b or s
; otherwise it is evaluated as a C language constant, except that:
  1. leading plus or minus sign is allowed.
  2. If the leading character is a single or double quote, the value is the ASCII code of the next character.
The format string is reused as often as necessary to satisfy the arguments, extra format specifications are evaluated with zero or the null string. Character escape sequences are in backslash notation as defined in the ANSI X3.159-1989 (``ANSI C89''), with extensions.