1> del bar
2bar: deleted
3> get bar
4bar: not found
5> get nonexist
6nonexist: not found
7> del nonexist
8nonexist: not found
9> get foo
10foo=fooval
11> del foo
12foo: deleted
13> put baz bazval
14baz=bazval
15> get baz
16baz=bazval
17> del baz
18baz: deleted
19> get baz
20baz: not found
21