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Using Terminal.app

The Terminal program, found in the utilities subfolder of the Applications folder, is the primary method for communicating with the BSD subsystem of the OS X installation, via the Unix command line. Some tricks and nifty applications are already appearing to insulate you from the need to work with the command line for some applications. We will cover these as well, but the terminal itself will probably be your primary mode of interaction.

Simply put, Terminal.app is the “terminal” by which you can type commands to your machine. It's the software version of what used to be implemented as a dedicated hardware device that understood how to display data and put it in specific positions on a screen. A terminal itself isn't particularly interesting, but provides the mechanism for communication between you and programs that are more interesting to talk to.


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