In macOS and OS X it’s possible to show one application at a time. You can enable a ‘single application’ mode by entering the following command in Terminal:
Earlier this week, a bug in macOS High Sierra was discovered that made it possible to use the root user without a password. That could be dangerous in combination with malware.
Thankfully, Apple is resolving this bug within 24 hours with a security update. Only this has created a new problem that affects a select number of users. If you use file sharing within your own network, this may stop working. You can easily solve this problem with a Terminal command.
Most improvements in macOS High Sierra are not immediately visible to the ordinary macOS user. Especially under the hood many improvements have been made in the area of performance and safety. Some users experience a slow Mac after installing MacOS High Sierra
With the following 10 Terminal Commands you can speed up macOS High Sierra. The commands disable various delays and animations from that standard built by Apple. These are nice, but not necessary for the Mac