On Fri, Jan 7, 2011 at 1:33 AM, Greg Wooledge <[email protected]> wrote:
> On Thu, Jan 06, 2011 at 10:48:33AM +0100, Vidar Holen wrote:
> > Hi,
> >
> > Finding the meaning of $? and $! in the man page is quite hard for people
> > not familiar with the layout and bash terminology (this frequently comes
> > up in Freenode #bash). It would be very helpful for them if you could
> > simply search for "$!" to find the description of the parameter !.
>
> I absolutely second this. In fact, I sent a very similar patch for this
> last year.
>
>
Agree. Also for this:
${parameter}
The value of parameter is substituted. The braces are
required
when parameter is a positional parameter with more than
one
digit, or when parameter is followed by a character which is
not
to be interpreted as part of its name.
If the first character of parameter is an exclamation point, a level
of
variable indirection is introduced.
I recommend to add another line just after ${parameter}:
${parameter}
${!parameter}
--
Clark
