jrunscript-java-1.7.0-openjdk

jrunscript(1)               General Commands Manual              jrunscript(1)



Name
       jrunscript - command line script shell

SYNOPSIS
       jrunscript [ options ] [ arguments... ]


PARAMETERS
          options
             Options, if used, should follow immediately after the command
             name.

          arguments
             Arguments, if used, should follow immediately after options or
             command name.


DESCRIPTION
       jrunscript is a command line script shell. jrunscript supports both an
       interactive (read-eval-print) mode and a batch (-f option) mode of
       script execution. This is a scripting language independent shell. By
       default, JavaScript is the language used, but the -l option can be used
       to specify a different language. Through Java to scripting language
       communication, jrunscript supports "exploratory programming" style.

       NOTE: This tool is experimental and may not be available in future
       versions of the JDK.

OPTIONS
          -classpath path
             Specify where to find the user's .class files that are accessed
             by the script.

          -cp path
             This is a synonym for -classpath path

          -Dname=value
             Set a Java system property.

          -J<flag>
             Pass <flag> directly to the Java virtual machine on which
             jrunscript is run.

          -l language
             Use the specified scripting language. By default, JavaScript is
             used. Note that to use other scripting languages, you also need
             to specify the corresponding script engine's jar file using -cp
             or -classpath option.

          -e script
             Evaluate the given script. This option can be used to run "one
             liner" scripts specified completely on the command line.

          -encoding encoding
             Specify the character encoding used while reading script files.

          -f script-file
             Evaluate the given script file (batch mode).

          -f -
             Read and evaluate a script from standard input (interactive
             mode).

          -help
             Output help message and exit.

          -?
             Output help message and exit.

          -q
             List all script engines available and exit.


ARGUMENTS
       If [arguments...] are present and if no -e or -f option is used, then
       the first argument is the script file and the rest of the arguments, if
       any, are passed as script arguments. If [arguments..] and -e or -f
       option are used, then all [arguments..] are passed as script arguments.
       If [arguments..], -e and -f are missing, interactive mode is used.
       Script arguments are available to a script in an engine variable named
       "arguments" of type String array.

EXAMPLES
   Executing inline scripts
       jrunscript -e "print('hello world')"
       jrunscript -e "cat('http://java.sun.com')"


   Use specified language and evaluate given script file
       jrunscript -l js -f test.js


   Interactive mode
       jrunscript
       js> print('Hello World\n');
       Hello World
       js> 34 + 55
       89.0
       js> t = new java.lang.Thread(function() { print('Hello World\n'); })
       Thread[Thread-0,5,main]
       js> t.start()
       js> Hello World

       js>


   Run script file with script arguments
       jrunscript test.js arg1 arg2 arg3


       test.js is script file to execute and arg1, arg2 and arg3 are passed to
       script as script arguments. Script can access these using "arguments"
       array.

SEE ALSO
       If JavaScript is used, then before evaluating any user defined script,
       jrunscript initializes certain built-in functions and objects. These
       JavaScript built-ins are documented in jsdocs @
       http://docs.oracle.com/javase/7/docs/technotes/tools/share/jsdocs/allclasses-noframe.html.

                                  16 Mar 2012                    jrunscript(1)