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.
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.
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.
TextEdit is a simple application for quickly writing text and notes. The text can be edited in RTF (Rich Text Format) mode, as well as plain text. With the following defaults write command you can enable plain text as default format in TextEdit.
Did you know that you can customize the Dock in OS X through terminal? With the following defaults write you can add a blank space to the Dock. This is a better way to organize applications.
When you take a screenshot on Mac OS X there’s a shadow around the screenshot by default. Disable the shadow from the screenshot with this Terminal command: