A Practical Guide to UNIX® for Mac OS® X Users by Mark G. Sobell

By Mark G. Sobell

Underneath Mac OSR X's attractive graphical consumer interface (GUI) is the main robust working method ever created: UNIXR. With unrivaled readability and perception, this ebook explains UNIX for the Mac OS X usergiving you overall keep watch over over your method, so that you can get extra performed, quicker. construction on Mark Sobell's hugely praised a realistic consultant to the UNIX method, it grants finished information at the UNIX command line instruments each consumer, administrator, and developer must mastertogether with the world's most sensible day by day UNIX reference.This booklet is full of 1000s of high quality examples. From networking and procedure utilities to shells and programming, this can be UNIX from the floor upboth the "whys" and the "hows"for each Mac person. you will comprehend the relationships among GUI instruments and their command line opposite numbers. want rapid solutions? do not trouble with complicated on-line "manual pages": depend upon this book's example-rich, quick-access, 236-page command reference!"

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In this way the text distinguishes between utilities, which are programs, and the instructions you give on the command line to invoke the utilities. Filenames Filenames appear in a bold typeface. 1283, and reports. Filenames may include uppercase and lowercase letters; however, Mac OS X can be case sensitive (page 925), so memo5, MEMO5, and Memo5 may name three different files. By default these three filenames refer to the same file. For more information refer to "Filenames" on page 74. Character strings Within the text, characters and character strings are marked by putting them in a bold typeface.

By default the root account is disabled (it has no password). Standard practice is to use sudo (page 431) to perform tasks that require root privileges. On a multiuser system on which the root account has been enabled, you may not be permitted to know the root password, but someoneusually the system administratorknows the root password and maintains the system. When you are running OS X on your own computer, you can enable the root account (page 430). Refer to "System Administrator and Superuser" on page 427 for more information.

From the command line of a terminal or a terminal emulator of an Apple, PC, or UNIX-like machine, give the command ssh, followed by the name or IP address (refer to "Host Address" on page 393) of the system you want to log in on. For examples and more detail refer to "Running Commands from the Terminal Emulator/Shell" on page 24. For more information about logging in see "Textual Login" on page 21. Curbing Your Power: Superuser/root/Administrator Access While you are logged in as the user named root, you are referred to as Superuser or administrator and have extraordinary privileges.

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