[Help-bash] array indirection

[Bill Gradwohl]

Can anyone explain why one pass of this loop works and then fails.

If it didn't work at all, or worked all the time I could understand, but working once and then quitting is confusing.

array=(11 12 13 14 15)
variableName='array'

for ((x=0; x<address@hidden; ++x)); do
   echo "array[${x}]=${!variableName[$x]}"
done
==================
Produces:
address@hidden 01.ycc# ./tst pass3
array[0]=11
./tst: line 33: !variableName[$x]: unbound variable


-- 
Bill Gradwohl