Do you want to view your logs in Sierra? Here’s a free tool which does much more than anything else.
logs
A Trackpad which disconnects and reconnects incessantly is diagnosed using a log capture.
If you can’t use Console, use the log command in Terminal – except that has some major bugs which will hide log entries from you.
Traditional logs occupy too much space, contain unstructured information, impose overhead on all processes, and are badly cluttered.
How can you look for error messages preceding an app crashing, or when your Mac panicked and automatically restarted?
So how do you check your logs to see if backups have been made correctly? Forget Console – you’ve got to use Terminal.
The release of Sierra seems to have gone smoothly. Was it really a major release, though? What does it get wrong? What about third party support?
Even a performing basic check can be an act of supreme intellectual challenge, or is now flatly impossible. Early beta quality.
Explaining the basic sequence of log entries for a Mac waking from sleep, and making a Time Machine backup.
How to understand Console’s log entries for a normal shutdown, and a normal startup.
The Eclectic Light Company 