Single Quotes Quoting ANSI-C Quoting
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 Shell Expansions).
The backslash retains its special meaning only when followed by one of
the following characters:
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
The special parameters `
*' and `
@' have special meaning
when in double quotes (see Shell Parameter Expansion).