I think you can use bitcoind. It comes with Bitcoin-qt. Run bitcoind in one console, then when it is running, run bitcoind in another console with command line options.

I want to keep bitcoins on very weak computer, possibly something like raspberry pi, so things like Bitcoin-qt are out of question. Can someone recommend what bitcoin wallet to use that will take up very little space and computer resources, but will keep your bitcoins secure and safe from hacking, even if used on tor?

-- 秀吉 (Hideyoshi)