1root of 'a/b/c' is 'a/b/c' 2root of 'def' is 'def' 3root of 'a.b.c' is 'a.b' 4root of 'a.b/c' is 'a' 5root of 'a' is 'a' 6root of 'a.a' is 'a' 7root of '.gitignore' is '' 8root of 'a' is 'a' 9root of 'a.a' is 'a' 10exit status 0 11