JRUNSCRIPT

NAME

jrunscript- run a comman-line script shell that supports interactive and batch modes  

SYNOPSIS

B]Note:R]

This tool is B]experimentalR] and unsupported.

V]jrunscriptR] [I]optionsR]] [I]argumentsR]]

I]optionsR]

This represents the V]jrunscriptR] comman-line options that can be used. See B]Options for the jrunscript CommandR].

I]argumentsR]

Arguments, when used, follow immediately after options or the command name. See B]ArgumentsR].

DESCRIPTION

The V]jrunscriptR] command is a languag-independent comman-line script shell. The V]jrunscriptR] command supports both an interactive (rea-eva-print) mode and a batch (V-fR] option) mode of script execution. By default, JavaScript is the language used, but the V-lR] option can be used to specify a different language. By using Java to scripting language communication, the V]jrunscriptR] command supports an exploratory programming style.

If JavaScript is used, then before it evaluates a user defined script, the V]jrunscriptR] command initializes certain buil-in functions and objects, which are documented in the API Specification for V]jrunscriptR] JavaScript buil-in functions.  

OPTIONS FOR THE JRUNSCRIPT COMMAND

V-cpR] I]pathR] or V-classpathR] I]pathR]

Indicates where any class files are that the script needs to access.

V-DR]I]nameR]V]=R]I]valueR]

Sets a Java system property.

V-JR]I]flagR]

Passes I]flagR] directly to the Java Virtual Machine where the V]jrunscriptR] command is running.

V-lR] I]languageR]

Uses the specified scripting language. By default, JavaScript is used. To use other scripting languages, you must specify the corresponding script engine[aq]s JAR file with the V-cpR] or V-classpathR] option.

V-eR] I]scriptR]

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

V-encodingR] I]encodingR]

Specifies the character encoding used to read script files.

V-fR] I]scrip-fileR]

Evaluates the specified script file (batch mode).

V-f-R]

Enters interactive mode to read and evaluate a script from standard input.

V-helpR] or V-?R]

Displays a help message and exits.

V-qR]

Lists all script engines available and exits.

ARGUMENTS

If arguments are present and if no V-eR] or V-fR] 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 the V-eR] or the V-fR] option are used, then all arguments are passed as script arguments. If arguments V-eR] and V-fR] are missing, then the interactive mode is used.  

EXAMPLE OF EXECUTING INLINE SCRIPTS

V]jrunscript-e [dq]print([aq]hello world[aq])[dq]R]

V]jrunscript-e [dq]cat([aq]http://www.example.com[aq])[dq]R]

EXAMPLE OF USING SPECIFIED LANGUAGE AND EVALUATE THE SCRIPT FILE

V]jrunscript-l js-f test.jsR]

EXAMPLE OF INTERACTIVE MODE

CB]
jrunscript
js> print([aq]Hello World[rs]n[aq]);
Hello World
js> 34 + 55
89.0
js> t = new java.lang.Thread(function() { print([aq]Hello World[rs]n[aq]); })
Thread[Threa-0,5,main]
js> t.start()
js> Hello World

js>
R]

RUN SCRIPT FILE WITH SCRIPT ARGUMENTS

In this example, the V]test.jsR] file is the script file. The V]arg1R], V]arg2R], and V]arg3R] arguments are passed to the script. The script can access these arguments with an arguments array.

V]jrunscript test.js arg1 arg2 arg3R]

Index

NAME

SYNOPSIS

DESCRIPTION

OPTIONS FOR THE JRUNSCRIPT COMMAND

ARGUMENTS

EXAMPLE OF EXECUTING INLINE SCRIPTS

EXAMPLE OF USING SPECIFIED LANGUAGE AND EVALUATE THE SCRIPT FILE

EXAMPLE OF INTERACTIVE MODE

RUN SCRIPT FILE WITH SCRIPT ARGUMENTS