ms excel qr code generator Navigating and using Mac OS X in Objective-C

Drawer QR-Code in Objective-C Navigating and using Mac OS X

Navigating and using Mac OS X
Generating QR-Code In Objective-C
Using Barcode generator for iPhone Control to generate, create QR Code ISO/IEC18004 image in iPhone applications.
www.OnBarcode.com
Generate GTIN - 12 In Objective-C
Using Barcode generation for iPhone Control to generate, create UPC-A image in iPhone applications.
www.OnBarcode.com
2.13 Scripting languages
Encode Code 128 Code Set C In Objective-C
Using Barcode encoder for iPhone Control to generate, create Code 128A image in iPhone applications.
www.OnBarcode.com
Encode Barcode In Objective-C
Using Barcode generation for iPhone Control to generate, create Barcode image in iPhone applications.
www.OnBarcode.com
Historically, UNIX systems have provided strong support for text processing, filtering, and program automation through commands, pipes, shell scripts, and high-level scripting languages such as Shell, Perl, and Python. The most basic technique is to use standard UNIX commands combined with pipes. For example, imagine you wish to count the number of lines (comments and empty lines) in a project s source tree and display the result. This task includes finding all target files under the project directory, counting the number of lines in each source file, summing the source lines, and printing the results. A common UNIX solution is to use various UNIX commands linked together with pipes. To find the source files, you use the find command; to count the lines, you use the wc command; to construct arguments and execute a utility (wc), use xargs. To connect the commands, you use a pipe (|). Using these commands and a pipe, you can solve the problem without writing a single line of code:
Encode Code 39 In Objective-C
Using Barcode maker for iPhone Control to generate, create Code 3 of 9 image in iPhone applications.
www.OnBarcode.com
Barcode Drawer In Objective-C
Using Barcode drawer for iPhone Control to generate, create Barcode image in iPhone applications.
www.OnBarcode.com
% find myproject -name "*.c" | xargs wc -l
Print Data Matrix ECC200 In Objective-C
Using Barcode generator for iPhone Control to generate, create Data Matrix image in iPhone applications.
www.OnBarcode.com
Drawing GS1 - 12 In Objective-C
Using Barcode encoder for iPhone Control to generate, create UPC-E Supplement 5 image in iPhone applications.
www.OnBarcode.com
Another technique is to use specialized tools like ed and awk to perform tasks such as filtering lines in a set of files and extracting and formatting information. Both UNIX commands and tools such as ed and awk provide you with primitives, but they do not give you the programmatic infrastructure to perform tasks that are more complex. Enter scripting languages. Scripting languages, such as Perl and Python, enable you to perform many of the tasks you accomplished using UNIX commands and tools, but give you plenty of infrastructure to extend and enhance your solutions. In addition, these languages let you write programs that talk over a network, provide a GUI for user interaction, and perform mathematical operations. Scripting languages are not new; they have existed since the 1960s. Early languages included JCL (Job Control Language), sh (the first shell), and Rexx; today s popular languages include Perl, Python, JavaScript, and Tcl.
Decode QR Code ISO/IEC18004 In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Read QR In Visual C#
Using Barcode scanner for VS .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
2.13.1 AppleScript
Painting Data Matrix 2d Barcode In None
Using Barcode drawer for Excel Control to generate, create ECC200 image in Excel applications.
www.OnBarcode.com
Recognizing UCC - 12 In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
All your favorite UNIX scripting languages, commands, and tools, are available under Mac OS X from the Terminal application. However, the Mac OS X offers another scripting language that is specific to the Macintosh: AppleScript. AppleScript, developed by Apple, is a high-level scripting language that facilitates the manipulation of application and system services. The advantage of AppleScript over other scripting languages is that AppleScript is a system- and application-level
Printing QR Code 2d Barcode In Java
Using Barcode creation for Java Control to generate, create QR Code image in Java applications.
www.OnBarcode.com
UCC-128 Drawer In None
Using Barcode encoder for Microsoft Word Control to generate, create EAN / UCC - 13 image in Office Word applications.
www.OnBarcode.com
Scripting languages
GS1 - 13 Encoder In Java
Using Barcode maker for Java Control to generate, create EAN13 image in Java applications.
www.OnBarcode.com
QR Code Maker In None
Using Barcode maker for Office Word Control to generate, create QR Code image in Microsoft Word applications.
www.OnBarcode.com
Figure 2.14 The Script Editor is the main development tool for writing and running an AppleScript.
USS-128 Creator In Visual Studio .NET
Using Barcode printer for VS .NET Control to generate, create GS1 128 image in .NET applications.
www.OnBarcode.com
Code 3/9 Decoder In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
scripting language supported by most Macintosh applications. Because support for AppleScript is built into the Macintosh operating system, there is tight integration with core system services and Inter-Process Communication (IPC) facilities between applications. The main reason to use AppleScript over Perl or Python is its ability to control other programs and use their services. You can do something like this with Perl using the open and system calls, but with AppleScript the technique is far more substantial. In Perl, you call programs as black boxes; but AppleScript gives you access to the application s internals, so you can script many of the features that are available to a user interacting through the program s GUI. AppleScript uses AppleEvents as its primary communication primitive, which facilitates the sharing of services between applications. AppleEvents are defined messages that enable applications to extend their functionality by using the services of other applications and share their own operations with other applications. AppleScript communicates with applications by sending AppleEvents to other AppleEvent-enabled applications or system processes to request services and receive the result of the operation. Let s take a quick look at AppleScript and get a feel for how easy it is to write scripts. The AppleScript editor, Script Editor (see figure 2.14), is located in the / Applications/AppleScript folder and is loaded as part of the default Mac OS X installation. You use the Script Editor as your main development environment for writing and testing scripts. AppleScript is an easy-to-understand, English-like language, structured as a series of single or compound statements. Imagine you wish to create an AppleScript to connect to a specific host over ssh. To do so, follow these steps:
Drawing Code-39 In VS .NET
Using Barcode maker for Reporting Service Control to generate, create Code39 image in Reporting Service applications.
www.OnBarcode.com
Paint GS1 - 12 In .NET
Using Barcode creation for ASP.NET Control to generate, create GS1 - 12 image in ASP.NET applications.
www.OnBarcode.com
Copyright © OnBarcode.com . All rights reserved.