1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
#command cdx sort -m $TMP/aaa $TMP/bbb #infile aaa aaa ccc eee ggg #infile bbb bbb ddd fff hhh #stdout aaa bbb ccc ddd eee fff ggg hhh