Not sure why this answer has not already been posted. Perhaps something changed and this is new. I don’t know, I’m new. I’m running version 30 on linux and on my machine, configuration is stored in .conf files under my home directory. So, I assume, if you look here:
~/.config/Bitcoin/
You should find them. When I start bitcoin-qt, for example, it reads a file named
~/.config/Bitcoin/Bitcoin-Qt.conf
which contains a line like this
strDataDir=/media/You/ExtraDrive/bitcoin/data
This path specifies the location of the directory containing the data. So, provided you shut down bitcoin entirely first. You can move the data directory wherever you like (being sure security is workable in the new location), change the path row in .conf, and restart.
