Copy Files To and From Remote Locations

1- name: Move foo to bar
2  command: mv /path/to/foo /path/to/bar

or check first and do a copy if it exist

1- name: stat foo
2  stat: path=/path/to/foo
3  register: foo_stat
4 
5- name: Move foo to bar
6  command: mv /path/to/foo /path/to/bar
7  when: foo_stat.stat.exists

and, for ansible 2.0+, you can do:

1- name: Copy files from foo to bar
2  copy: remote_src=True src=/path/to/foo dest=/path/to/bar

Details in https://stackoverflow.com/questions/24162996/how-to-move-rename-a-file-using-an-ansible-task-on-a-remote-system