By Mark G. Sobell
Underneath Mac OSR X's beautiful graphical consumer interface (GUI) is the main robust working approach ever created: UNIXR. With unequalled readability and perception, this publication explains UNIX for the Mac OS X usergiving you overall keep watch over over your procedure, so that you can get extra performed, speedier. development on Mark Sobell's hugely praised a pragmatic advisor to the UNIX process, it grants complete assistance at the UNIX command line instruments each consumer, administrator, and developer must mastertogether with the world's most sensible daily UNIX reference.This publication is filled with thousands of top quality examples. From networking and process utilities to shells and programming, this can be UNIX from the floor upboth the "whys" and the "hows"for each Mac consumer. you will comprehend the relationships among GUI instruments and their command line opposite numbers. want fast solutions? do not hassle with complicated on-line "manual pages": depend upon this book's example-rich, quick-access, 236-page command reference!"
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Extra info for A Practical Guide to UNIX® for Mac OS® X Users
Tip: This is a tip box A tip box may help you avoid repeating a common mistake or may point toward additional information. Caution: This box warns you about something Part I: The Mac OS X Operating System 31 32 Part I: The Mac OS X Operating System A caution box warns you about a potential pitfall. Security: This box marks a security note A security box highlights a potential security issue. These notes are usually for system maintainers, but some apply to all users. Logging In Textual and graphical interfaces There are two ways to work with a Mac OS X system: graphical and textual.
These commands are described next. Figure 3-1. Using ls, cat, and rm on the file named practice $ ls practice $ cat practice This is a small file that I created with a text editor. $ rm practice $ ls $ cat practice cat: practice: No such file or directory $ cat: Displays a Text File The cat utility displays the contents of a text file. The name of the command is derived from catenate, which means to join together one after the other. ) A convenient way to display the contents of a file to the screen is by giving the command cat, followed by a SPACE and the name of a file.
Bravo:~ zach$ After you enter your username and password, the shell prompt (or just prompt) appears, indicating that you have successfully logged in; it indicates that the system is ready for you to give it a command. The shell prompt line may be preceded by a short message called the message of the day (kept in /etc/motd) and your last login information. By default OS X establishes a prompt of host:directory user$, where user is your username, host is the name of the local system, and directory is the name of the directory you are working in.
A Practical Guide to UNIX® for Mac OS® X Users by Mark G. Sobell