On my Ubuntu install, /usr/share/dict/words is symlinked to /usr/share/dict/american-english, which has about 100k words. log2(100000^6)=100, which surprised me by being not that much bigger than log2(50000^6) = 94. Bad math intuition on my part.
If you often need to generate XKCD-compliant passwords on Linux machines, you may find this command line handy:
(It will work on a Mac if you install coreutils and change shuf to gshuf.)
On my Ubuntu install, /usr/share/dict/words is symlinked to /usr/share/dict/american-english, which has about 100k words. log2(100000^6)=100, which surprised me by being not that much bigger than log2(50000^6) = 94. Bad math intuition on my part.