I have a bunch of files like blk00110.dat now that bitcoin-qt (on my mac) has finally updated. I'd like to just move this over to my linux box so I can keep it up and running but the bitcoind program uses a different structure. How can I move this data?
There should be a
.bitcoin directory once you install bitcoind on your linux box. Copying those
.dat files in this directory should enable bitcoind to read them directly.
Bitcoin-QT is actually using bitcoind under the hood. So it shouldn't be using different structure unless you're using different versions of bitcoind.
Edit: also reading more about bitcoind commands, there's a command to import a file directly. So this should probably be better than directly placing the files in the directory:
Imports blocks from external blk000??.dat file
If you concatenate all the blk files (in order) and put them in bootstrap.dat, and copy that over to ~/.bitcoin/ - then bitcoind will import it.