The jrunscript Command- Line Shell - Scripting in Java: Integrating with Groovy and JavaScript - page 279

Passing Arguments to Scripts
The jrunscript shell allows passing arguments to scripts. The arguments are made
available to the script in an array-like object named arguments . You can access the
arguments array inside the script in a language-specific way. The following command
passes three arguments of 10, 20, and 30, and prints the value of the first argument:
C:\>jrunscript -e "print('First argument is ' + arguments[0])" 10 20 30
First argument is 10
Consider the Nashorn JavaScript file nashornargstest.js shown in Listing 9-2,
which prints the number of arguments and their values that are passed to the script.
Listing 9-2. A nashornargstest.js File Written in Nashorn JavaScript to Print
Command-Line Arguments
// nashornargstest.js
print("Number of arguments:" + arguments.length);
print("Arguments are ") ;
for(var i = 0; i < arguments.length; i++) {
print(arguments[i]);
}
The following commands run the nashornargstest.js file using the jrunscript shell:
C:\>jrunscript nashornargstest.js
Number of arguments:0
Arguments are
C:\>jrunscript nashornargstest.js 10 20 30
Number of arguments:3
Arguments are
10
20
30
If you want to run the nashornargstest.js file from a Java application, you need to
pass an argument named arguments to the engine. The argument named arguments is
passed to the script by the shell automatically, not by a Java application.