File extensions (.jpg, .txt, .pdf, etc) are normally hidden by default in OS X. You can either set all extensions to be displayed through the following command:
Through the system preferences you can adjust the size of the Dock icons. Unfortunately, you can’t go larger than 256 pixels. With the following command you can change the size in different sizes.
Since OS X 10.9 mavericks, the behavior of the power button has been changed. When you press the power button for about 2 seconds, it will put macOS (OS X) in stand-by (sleep) mode.
With the following command you can use the power button function as in previous versions of OS X. By showing a dialog box for turning off the Mac and more.
There is a Terminal command that you can use to quickly make your dock look like new again. Do you experience problems with the Dock on your Mac? The best you can do is to reset it to default settings.
The following Terminal command will reset your dock by removing any icons that you’ve added and removed. It’ll also reset the size of the dock, magnification settings, and its location.
Some of the built-in macOS applications have the possibility to activate a ‘special’ debug menu. One of these applications is Reminders, the debug menu gives you the option to manually Update/Refresh with your iCloud account.
Quit the Reminders application and start a Terminal window, apply the following command:
Time Machine backups are great, but very slow when a large amount of data/files needs to be transferred (such as the initial back-up). As desgined by Apple the Time Machine background proces is running in a very low CPU priority, giving all other running applications en services priority.
Sometimes it can happen when saving a document that you have to click first on the triangle next to the Location field to open the expanded save window. This can be very confusing, with the following command you can enable the expand save panel by default.