This is the revision history for map and grep in <matrix.org:#rAnyijhRxzFRfdjSHl:matrix.org>

factoid_idsubjectcopulapredicateauthornamespace
10096 map and grep is http://altreus.blogspot.co.uk/2011/10/understanding-and-using-map-and-grep.html altreus <*:##NULL>