Aleksey,
They are the same. Both $(...) and ${...} can be used to refer to scalar
variables, and to do implicit looping.
--Diego
On 12/13/2010 12:20 AM, Aleksey Tsalolikhin wrote:
> Hi. What does ${...} mean again? And what's the difference to $(...)
> which I know is used to unambiguously refer to scalar variables and to
> do magical implicit 'foreach' style loops on arrays.
>
> For example, I see it in the following unit examples/tests:
>
> [cfengine00 cfengine]# grep '${' *
> unit_chdir.cf:chdir => "${dir}";
> unit_epimenides.cf: "head" string => "Swallow my ${tail}";
> unit_epimenides.cf: "tail" string => "behind my ${head}";
> unit_multipassvars.cf: "tempdir: ${tempdir}";
> [cfengine00 cfengine]#
>
> I don't see any mention of ${ in the reference manual.
>
> Thanks,
> Aleksey
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