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jrunscript(1)                                                                                  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 dif-ferent different
       ferent 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.

       -Jflag
          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 -fRead
          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  [argu-ments..], [arguments..],
       ments..], -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');
          hello world
          js>34 + 55
          89
          js> thread(function() { print('hello world'); }
          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.







                                                 06 Aug 2006                                   jrunscript(1)