--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/table-union.py	Mon Jan 08 11:19:54 2018 -0500
@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+
+import csv
+import sys
+
+
+
+def main(files):
+	header = []
+	items = []
+	for fi in files:
+		with open(fi, 'rU') as table:
+			rows = csv.DictReader(table, delimiter='\t', dialect='excel-tab')
+			for field in rows.fieldnames:
+				if field not in set(header):
+					header.append(field)
+			items.extend(rows)
+	wr = csv.DictWriter(sys.stdout, delimiter='\t', dialect='excel-tab', fieldnames=header)
+	wr.writeheader()
+	wr.writerows(items)
+
+
+if __name__ == '__main__':
+	main(sys.argv[1:])
\ No newline at end of file