jrunscript(1)                   Scripting Tools                  jrunscript(1)



NAME
       jrunscript - Runs a command-line script shell that supports interactive
       and batch modes. This command is experimental and unsupported.

SYNOPSIS

       jrunscript [options] [arguments]


       options
              The command-line options. See Options.

       arguments
              Arguments, when used, follow immediately after options or the
              command name. See Arguments.

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

OPTIONS
       -classpath path
              Indicate where any class files are that the script needs to
              access.

       -cp path
              Same as -classpathpath.

       -Dname=value
              Sets a Java system property.

       -Jflag
              Passes flag directly to the Java Virtual Machine where the
              jrunscript command is running.

       -I language
              Uses the specified scripting language. By default, JavaScript is
              used. To use other scripting languages, you must specify the
              corresponding script engine's JAR file with the -cp or
              -classpath option.

       -e script
              Evaluates the specified script. This option can be used to run
              one-line scripts that are specified completely on the command
              line.

       -encoding encoding
              Specifies the character encoding used to read script files.

       -f script-file
              Evaluates the specified script file (batch mode).

       -f -
              Reads and evaluates a script from standard input (interactive
              mode).

       -help
              Displays a help message and exits.

       -?
              Displays a help message and exits.

       -q
              Lists all script engines available and exits.

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 to the script. If arguments and -e or the -f option are
       used, then all arguments are passed to the script. If arguments, -e and
       -f are missing, then interactive mode is used. Script arguments are
       available to a script in an engine variable named arguments of type
       String array.

EXAMPLES
   EXECUTE INLINE SCRIPTS
       jrunscript -e "print('hello world')"
       jrunscript -e "cat('http://www.example.com')"



   USE SPECIFIED LANGUAGE AND EVALUATE THE 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
       The test.js file is the script file. The arg1, arg2 and arg3 arguments
       are passed to the script. The script can access these arguments with an
       arguments array.

       jrunscript test.js arg1 arg2 arg3



SEE ALSO
       If JavaScript is used, then before it evaluates a user defined script,
       the jrunscript command initializes certain built-in functions and
       objects. These JavaScript built-ins are documented in JsDoc-Toolkit at
       http://code.google.com/p/jsdoc-toolkit/

JDK 8                          21 November 2013                  jrunscript(1)