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Mac OS X Leopard - ARCAism

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Introducing Darwin<br />

and the Shell<br />

Running behind the slick <strong>Mac</strong> <strong>OS</strong> X Aqua interface is a powerful component of <strong>Mac</strong> <strong>OS</strong> X<br />

called Darwin. This is Apple’s name for the UNIX underpinnings of the <strong>OS</strong>. The most<br />

direct way to interact with Darwin and take full advantage of all those wonderfully powerful<br />

UNIX tools is through the use of the Terminal application (/Applications/Utilities/Terminal).<br />

When Terminal is launched, it will open up a terminal window running a shell program, as<br />

shown in Figure 18-1.<br />

Figure 18-1. The Terminal application running in <strong>Leopard</strong><br />

CHAPTER<br />

18<br />

NOTE In UNIX lingo, which applies to Darwin as well, using the command prompt is often<br />

referred to as running a shell, or running in a shell.<br />

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