Anybody know how to enable cheats on the linux enhanced edition? All the existing explanations (e.g. at beamdog) are pretty unhelpful ("Just do it like for the windows version of baldur's gate EE, with the .ini file that doesn't exist on your system")

Are you looking in the right place for the config file?

I haven't had a chance to download and install this game yet, but with the Linux versions of other Beamdog games, the config files are found in these locations, respectively:

BG2:EE, patch 1.3: ~/Documents/Baldur's Gate II - Enhanced Edition/Baldur.ini

BG2:EE, patch 2.x: ~/.local/share/Baldur's Gate II - Enhanced Edition/Baldur.lua

IWD:EE, patch 1.4: ~/.local/share/Icewind Dale - Enhanced Edition/Baldur.ini

...i.e. not in the game installation directory itself. And note that the 2.x patch switched from an .ini file to a .lua file. Also, you have to start and close the game at least once for the file to be created.

Yes, this worked, thanks. The default path worked out to be /.local/share/Planescape Torment - Enhanced Edition/Baldur.lua

Adding this line at the end of the other Program Option lines enabled the console, which is accessible by ctrl+space:
SetPrivateProfileString('Program Options', 'Debug Mode', '1')