Re: eval

[Rafael Fernandez]

Thanks, I wasn't aware that positional parameters greater than nine have to
be enclosed in brackets.

On Tue, May 3, 2011 at 10:17 PM, DJ Mills <danielmills1@gmail.com> wrote:

>
>
> On Tue, May 3, 2011 at 10:41 PM, Jonathan Nieder <jrnieder@gmail.com>wrote:
>
>> Hi Rafael,
>>
>> Rafael Fernandez wrote:
>>
>> >         set -- a b c d e f g h i j k l m n o p q r s t u v w x y z
>> >         i=1
>> >         eval echo '$'$i         # outputs an expected 'a'
>> >         i=10
>> >         eval echo '$'$i         # outputs 'a0'; expected 'j'
>> >         i=11
>> >         eval echo '$'$i         # outputs 'b1'; expected 'k'
>>
>> Have you tried
>>
>>        eval "echo \${$i}"
>>
>> ?
>>
>> That has nothing to do with eval.  The only way to explicitly expand a
> positional
> parameter > 9 is to use braces, echo "${10}"
>



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