Thank you for your answer. I had in mind that this line was for the initial start of the standby; should I just comment it before promoting the standby, or is this line useless for the day-to-day standby service?
If you're going to do WAL shipping, your 'archive_command' on the master needs to be copying over to the standby (rsync or whatever). Then the standby's recovery.conf would be a simple 'cp /path/to/wal-archive' type of command.
