I'm writing a script which needs to use the shell's brace expansion, but nothing I've tried works. For (a contrived) instance, say I have a variable containing the string 

```
thing{01..02}

```

and I (obviously) want to expand it to 

```
thing01 thing02  

```

from inside the script, how can I do that?

(For anyone who assumes this is a duplicate of [this other question](https://stackoverflow.com/questions/846730/tricky-brace-expansion-in-shell), please read them more carefully. That question is regarding working from the shell, not a shell script, and doesn't require the ability to expand arbitrary expressions.)