rhino Man page

RHINO(1) General Commands Manual RHINO(1)


rhino – invokes the JavaScript shell for running scripts in batch mode
or interactive


rhino [options] script_filename_or_url [script_arguments]


This manual page documents briefly the rhino command. This manual page
was written for the Debian distribution because the original program
does not have a manual page. It is written according to the html docu‐

rhino is a start script for the rhino JavaScript shell which provides a
simple way to run scripts in batch mode or an interactive environment
for exploratory programming.


-e script_source
Executes script_source as a JavaScript script.

-f script_filename_or_url
Reads script_filename_or_url content and execute it as a
JavaScript script.

-opt, -O optLevel
Optimizes at level optLevel, which must be an integer between -1
and 9. -1 means Interpretive mode is always used. 0 means no
optimizations whereas 9 means all optimizations are performed.

-version versionNumber
Specifies the language version to compile with. The string ver‐
sionNumber must be one of 100, 110, 120, 130, or 140. See
JavaScript Language Versions for more information on language

Enable strict mode.

Scripts executing in the shell have access to some additional proper‐
ties of the top-level object.

The arguments object is an array containing the strings of all
the arguments given at the command line when the shell was

help() Executing the help function will print usage and help messages.

Define an extension using the Java class named with the string
argument className. Uses ScriptableObject.defineClass() to
define the extension.

Restore from the specified file an object previously written by
a call to serialize.

Load JavaScript source files named by string arguments. If mul‐
tiple arguments are given, each file is read in and executed in

Load and execute the class named by the string argument class‐
Name. The class must be a class that implements the Script
interface, as will any script compiled by jsc.

Evaluate and print expressions. Evaluates each expression, con‐
verts the result to a string, and prints it.

Read given file and convert its bytes to a string using the
specified character coding or default character coding if
explicit coding argument is not given.

Open an input connection to the given string url, read all its
bytes and convert them to a string using the specified character
coding or default character coding if explicit coding argument
is not given.

Execute the specified command with the given argument and
options as a separate process and return the exit status of the
process. For details, see JavaDoc for

Serialize the given object to the specified file.

Run the given function or script in a different thread.

creates a synchronized function (in the sense of a Java synchro‐
nized method) from an existing function. The new function syn‐
chronizes on the this object of its invocation.

quit() Quit shell. The shell will also quit in interactive mode if an
end-of-file character is typed at the prompt.

Get or set JavaScript version number. If no argument is sup‐
plied, the current version number is returned. If an argument is
supplied, it is expected to be one of 100, 110, 120, 130, or 140
to indicate JavaScript version 1.0, 1.1, 1.2, 1.3, or 1.4


The online documentation under http://www.mozilla.org/rhino/shell.html


This manual page was written by Wolfgang Baer , for the
Debian project (but may be used by others).

February 12, 2005 RHINO(1)