diff is a special case of a more or less obligate preprocessing step for sequence alignment algorithms. You need to go further than diff to make meaningful phy

diff is a special case of a more or less obligate preprocessing step for sequence alignment algorithms. You need to go further than diff to make meaningful phylogenetic comparisons, though! https://en.wikipedia.org/wiki/Longest_common_subsequence_problem https://en.wikipedia.org/wiki/Longest_common_subsequence_pro... has much more.