(full OR comprehensive OR all)+linux+command+list+reference+"by dist"
web search came up dry
only other option is to try and find out how to dump all the "man" pages and then do a "diff" on each, for all the 100+ distributions.
that would mean installing each of them to do so, which is rather prohibitive at this time, though might be kind of interesting to do now that i think of it
any reference to other comprehensive type sites/info would be appreciated as well
this has programming relevance