- Mac os x shell script arguments how to#
- Mac os x shell script arguments mac os x#
- Mac os x shell script arguments install#
- Mac os x shell script arguments manual#
- Mac os x shell script arguments software#
Terminal window you open," that is really a shorthand way of saying that You in this chapter that a change you make will take effect "in the next The command line over a network from another machine, which we'll cover inĬhapter 10, "Interacting with Other Unix Machines." So when we tell One example: You can connect to your Mac using The subtle point here is that there are actually other ways besides Terminal When you type something in Terminal, the TerminalĪpplication passes that to the shell, and when the shell produces output, Terminal is the program that is handling the screen display and The appropriate Unix shell (determined by the Terminal application's When you open a new window in Terminal, the application runs
Mac os x shell script arguments mac os x#
Terminal is a regular Mac OS X graphical application, like your Web browser The Terminal application you are using to access the command line in Mac OS X There's an important distinction to understand here. The WebĪm I Configuring the Terminal Application or My Shell? Tcsh, bash, and ksh, and adds many of its own. Created in 1990, zsh combines features from Sanchez, formerly lead engineer on Mac OS X for Apple, worked on tcsh in theĮarly 1990s at the Massachusetts Institute of Technology. The TENEX and TOPS-20 operating systems, which provided a command-completionįeature that the creator (Ken Greer) of tcsh included in his new shell.
Mac os x shell script arguments install#
It is now open-source software,Īlthough you must agree to AT&T's license to install it. Developed at AT&T by David Korn in theĮarly 1980s. Syntax similar to that of the C programming language (originally written by Bill
Mac os x shell script arguments manual#
See the Bash Reference Manual onlineĬ shell. Widely used for system startup files (scripts run during system startup).īash (Bourne Again SHell) is an improved version of (See Chapter 9, "Creating and Using Scripts,"įor more on scripts.) Table 7.1 A Summary of Common Shellsīourne shell. They make use of variables, if-then conditions, and other scriptingĮlements such as loops. Series of commands written in the scripting language for the corresponding Tilde] is a synonym for your home directory.)Ĭonfiguration files for shells are actually scripts.
These files each have settings andĬommands for the particular program being configured. You would change in the course of normal use. In this chapter, we will concentrate on the ones There areĪctually several config-uration files available for each shell, and Table 7.1 Vi editor is called ~/.exrc ( ex is an older editor,Īnd vi provides a "visual interface" for it). For example, the main config-uration fileįor the tcsh shell is ~/.tcshrc, a configuration file for theīash shell is ~/.bash_profile, and the configuration file for the Many configuration filenames begin with a dot (.), so they are called dotįiles (use ls -a to see them). They do accept options on the command line butĭo not read any configuration files when you run them. User-config-urable neither the ls nor the cd command usesĬonfiguration files, for example. Most of the commands you have learned so far are not
User-configurable Unix programs (including your shell, the viĮditor, and others) look for configuration files in your home directory It should come as no surprise by now that you configure your shell by editing
Mac os x shell script arguments how to#
"Editing and Printing Files," to learn how to use vi). The vi editor by editing a configuration file it uses (see Chapter 6, The first program to configure is your shell, since your shell is the primary Options whenever you use them, much the same way that traditional Mac programs You add /Developer/Tools to your PATH, then you can use theĬommands in the /Developer/Tools directory without typing their fullĬonfiguring specific programs such as vi to turn on various
Mac os x shell script arguments software#
Making it easier to use additional software you install for example, if The Finder, and from the shell functions, which are short scripts that Preferences and to shape it more closely to the way you work.Įxamples of configuring your Unix environment include:Ĭustomizing your shell prompt so that it displays information you want toĬreating shortcuts for commonly used command/option combinations (theseĬan be "aliases," but they are distinct from the aliases you create in You change your Unix environment to have it more closely match your personal These configuration files contain settings andĬommands that determine how the programs will behavefor instance, theįiles can modify the list of places your shell looks for the commands you enter Many user-configurable Unix programs (such as your shell) read configurationįiles when they start up.
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