The Mac App Store has a debug menu just like the most standard Apple applications in OS X. From this menu you can access various of other options such as deleting cookies or the quick search for updates. Close the Mac App Store app and use the following command in Terminal to enable the debug menu.
When an application crashes in OS X you get a warning and a crash report on your desktop. The warning is displayed as a pop-up in the middle of the screen. This is convenient, but it could be better. It’s possible to get a crash notification in the Notification Center. Use the following command in Terminal to change this:
Most improvements in OS X 10:11 El Capitan are not immediately visible to the ordinary OS X user. Especially under the hood many improvements have been made in the area of performance and safety.
Do you want OS X 10:11 El Capitan faster than you can use the OS X Terminal Commands 10 below. The commands disable various delays from that standard built by Apple.
By default, screenshots (cmd⌘ + shift⇧ + 3) are saved on your desktop along with the date and time they were taken. It’s possible to to remove the date and time stamp from the file names of screenshots, use the following command in Terminal:
Do you want to keep the Dock in OS X organized? You can do this with a blank space. This way, you can divide your Dock in different groups. Copy and paste the following command in a Terminal window. After the restart, the space will be added to the Dock, which you can move to any place.
App Nap helps you save power and battery life when you’re working with multiple apps at the same time. You can disable this feature for each application by using the info window in the Finder (select the app in Finder and activate this window with cmd⌘ + i). With the following command you can disable App Nap system wide.
Safari has a hidden Debug-menu that offers some options for debugging the browser. The debug menu is different from the Developer menu. You can perform load and stress tests en additional logging features.