String literals consist of a series of characters contained between double quote characters. The length of a string literal is restricted by the length of the input line (see Format of source lines).
To include a double quote character or a dollar character in a string, use two of the character.
C string escape sequences are also enabled, unless ‑‑no_esc is specified (see Command syntax).
abc SETS "this string contains only one "" double quote"
def SETS "this string contains only one $$ dollar symbol"