$ daff daff can produce and apply tabular diffs. Call as: daff a.csv b.csv daff [--color] [--no-color] [--output OUTPUT.csv] a.csv b.csv daff [--output OUTPUT.html] a.csv b.csv daff [--www] a.csv b.csv daff parent.csv a.csv b.csv daff --input-format sqlite a.db b.db daff patch [--inplace] a.csv patch.csv daff merge [--inplace] parent.csv a.csv b.csv daff trim [--output OUTPUT.csv] source.csv daff