 include a
backslash at the end of each line.
Since the <I>pattern</I> arguments are in braces in the second form,
no command or variable substitutions are performed on them;  this makes
the behavior of the second form different than the first form in some
cases.
<P>
If a <I>body</I> is specified as
&#8220;<B>-</B>&#8221;
it means that the <I>body</I>
for the next pattern should also be used as the body for this
pattern (if the next pattern also has a body of
&#8220;<B>-</B>&#8221;
then the body after that 