Re: help, help scripting masters

On Mon, 22 Mar 2004, David J. Weller-Fahy wrote:

> After all that, here's how I understand it: If you leave out the braces
> nothing untoward is *supposed* to happen. However, I've had some bad
> luck with weird file names (and within file names) when not using the
> braces. That's my reasoning behind it, anyway. ;]

As I understand it the brace construct was introduced to solve two problems:

  1) Provide a mechanism for value-munging (as in the case of array
     subscripting and (sub)string ops)
  2) Setting variable token boundaries (such as when you want to do
     variable interpolation within a string: echo "foo${foo}bar".
     Without the braces it would try to substitute $foobar instead
     of the desired $foo.)

        --Arthur Corliss
          Bolverk's Lair -- http://arthur.corlissfamily.org/
          Digital Mages -- http://www.digitalmages.com/
          "Live Free or Die, the Only Way to Live" -- NH State Motto
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Received on Mon Mar 22 11:14:02 2004