check command - Provide the ability to validate configuration / system state with a command
Now that we have the ability to check and validate configuration and system state at a high level, it would be good to get that check to happen by simply running a command. All of that nice information that is now hidden behind debug levels would flow to the console information by default with this.
Related to #1746
I believe that this issue should be extended to include the verification (check) of the currently installed shims. It should check to see if the target of each shim is still present, and if not, suggest the removal of the shim.
Adding @AdmiringWorm for visibility. I think we should update this issue with all the suggested things that we should "check" for, and perhaps break them off into individual issues. Thoughts?