2 dimensional arrays: e.g. a[$i][$j] = "X"
???
Tim
On Sat, 2012-10-20 at 23:37 -0400, Robert Mckennon wrote:
> Is it possible to use a variables in an array name?
>
> I'm having a hell of a time getting it to work.
>
> for instance: a_0[x], a_1[x]...etc defined as: a_$i[x]
>
> I use a loop to create the arrays a_$i
> and then try and access them with:
>
> arrayname=a_$i
> nextarray=a_$(( $i + 1 ))
>
>
> I found I can get the data out of an array with a variable-name like
> so: F[$i]=$(eval echo \${$arrayname[$N]})
>
> and that works... (found that tip here
> http://www.linuxquestions.org/questions/programming-9/bash-loop-over-variable-array-names-705702/
> )
>
>
> But when trying to put data into the variable-named arrays is where
> I'm running into issues.
>
> 52 if [ $j != $N ];
> 53 then
> 54 {
> 55 $nextarray[$k]=$(eval echo \${$arrayname[$j]})
> 56 k=$(( $k + 1 ))
> 57 }
> 58 fi
>
> ./random.sh: line 55: a_4[0]=: command not found
>
> I've tried escaping it every way I can think of and google for, but
> I'm about done banging my head against the wall...
>
>
> Any suggestions???
>
> Rob.
>
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