pg_back is a simple (well kind of) bash shell script that can dump all your databases to files.
It can operate on standby server and takes care of pausing and resuming WAL replay.
The 1.10 release brings some bugfixes. See the CHANGELOG file in the project for more information.
pg_back is licensed under the classic 2 clauses BSD license.
Thanks to all the contributors!
More at https://github.com/orgrim/pg_back