#fsdb cid sid cname
9	-	spreadsheets
10	1	-
11	2	pascal
12	1	os
12	2	os
13	1	-
14	-	databases
15	1	-
16	1	-
17	1	-
# There was a bug when a was longer than b
#  | dbsort -n cid
#   | dbjoin -S -e - -a --input TEST/dbjoin_non_matching_2.in-2 -n cid
