3.1.2.3 Double Quotes

Enclosing characters in double quotes ('"') preserves the literal value of all characters within the quotes, with the exception of '$', '`', and '\'. The characters '$' and '`' retain their special meaning within double quotes (see section 3.5 Shell Expansions). The backslash retains its special meaning only when followed by one of the following characters: '$', '`', '"', '\', or newline. Within double quotes, backslashes that are followed by one of these characters are removed. Backslashes preceding characters without a special meaning are left unmodified. A double quote may be quoted within double quotes by preceding it with a backslash.

The special parameters '*' and '@' have special meaning when in double quotes (see section 3.5.3 Shell Parameter Expansion).