jjs − Invokes the Nashorn engine.
jjs [options] [script−files] [−− arguments]
One or more options of the jjs command, separated by spaces. For more information, see Options.
One or more script files which you want to interpret using Nashorn, separated by spaces. If no files are specified, an interactive shell is started.
All values after the double hyphen marker (−−) are passed through to the script or the interactive shell as arguments. These values can be accessed by using the arguments property (see Example 3).
The jjs command−line tool is used to invoke the Nashorn engine. You can use it to interpret one or several script files, or to run an interactive shell.
The options of the jjs command control the conditions under which scripts are interpreted by Nashorn.
Specifies the path to the supporting class files To set multiple paths, the option can be repeated, or you can separate each path with a colon (:).
Sets a system property to be passed to the script by assigning a value to a property name. The following example shows how to invoke Nashorn in interactive mode and assign myValue to the property named myKey:
This option can be repeated to set multiple properties.
Provides a full stack trace when an error occurs. By default, only a brief error message is printed.
Prints the full Nashorn version string.
Launches the script as a JavaFX application.
Prints the list of options and their descriptions.
Specifies the ECMAScript language version. The default version is ES5.
Enables or disables optimistic type assumptions with deoptimizing recompilation. Running with optimistic types will yield higher final speed, but may increase warmup time.
Enables shell scripting features.
Enables strict mode, which enforces stronger adherence to the standard (ECMAScript Edition 5.1), making it easier to detect common coding errors.
Sets the specified time zone for script execution. It overrides the time zone set in the OS and used by the Date object.
Prints the Nashorn version string.
Example 1 Running a Script with Nashorn
Example 2 Running Nashorn in Interactive Mode
jjs> println("Hello, World!")
Example 3 Passing Arguments to Nashorn
−− a b c
jjs> arguments.join(", ")
a, b, c
Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.
Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.
Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.
Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.
The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.
Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.
Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.
Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.