WSADMIN

wsadmin.bat -lang jython -user  -password 

for app in AdminApp.list().split('\r\n'):
   AdminApp.export(app, 'c:\\extras\\backup\\' + app + '.ear')

DB2 SQL COPY TABLE PROCEDURE

CREATE TABLE <ibrary>.<table> LIKE <library>.<table>

INSERT INTO <library>.<table> (SELECT * FROM <library>.<table>)

Cygwin SSH keygen (1024 bit, DSA)

$ ssh-keygen -t dsa -b 1024

Enter twice (empty for no passphrase)

Setting up Password-less Authentication

Client Machine
Default private key file : /home/<client-user>/.ssh/id_dsa
Default public key file : /home/<client-user>/.ssh/id_dsa.pub

Server Machine
Append the public key to the "/home/<server-user>/.ssh/authorized_keys" file (ubuntu server in this case)

Java SSH Client Code

//Set file system options
FileSystemOptions fsOptions = new FileSystemOptions();
SftpFileSystemConfigBuilder.getInstance().setStrictHostKeyChecking(fsOptions, "yes");
SftpFileSystemConfigBuilder.getInstance().setIdentities(fsOptions, new File[]{new File("C:\\cygwin\\home\\<client-user>\\.ssh\\id_dsa")});

FileSystemManager fsManager = VFS.getManager();
FileObject textFile = fsManager.resolveFile( "sftp://<server-user>@<server-name>/", fsOptions );
for(FileObject fObject : textFile.getChildren()) {
    System.out.println( fObject.getName());
}

Java Code to Create a Buffered Image of TYPE_BYTE_BINARY

byte[] cMap = new byte[] {(byte)(255),(byte)(0)};
IndexColorModel colorModel = new IndexColorModel(1, 2, cMap, cMap, cMap);

BufferedImage combined = new BufferedImage(
                            buf1.getWidth(), 
                            buf1.getHeight() + buf2.getHeight() ,
                            BufferedImage.TYPE_BYTE_BINARY );

byte[] data = ((DataBufferByte) src.getRaster().getDataBuffer()).getData();
for(int i = 0; i < data.length; i++) {
    data[i] =(byte) (~data[i] & 0xff);
}

Create ISO images from CD, DVD & Folder

For Drives

dd if=/dev/dvd of=dvd.iso # for dvd
dd if=/dev/cdrom of=cd.iso # for cdrom
dd if=/dev/scd0 of=cd.iso # if cdrom is scsi

For Folders

sudo apt-get install genisoimage
mkisofs -allow-lowercase -o cd.iso image/

Monitoring Ubuntu Server Using Htop

Htop is an advanced, interactive system monitor process viewer written for Linux. It is designed to replace the Unix program top. It shows a frequently updated list of the processes running on a computer, normally ordered by the amount of CPU usage. Unlike 'top', Htop provides a full list of processes running, instead of the top resource consuming processes. Htop also uses color and gives visual information about processor, swap and memory status. - Wikipedia

Hiding Userland Threads
By default htop displays userland threads of processes like console-kit-daemon. To disable this feature;

Run htop
Press F2
Select "Display options"
Mark "Hide userland threads"

Ubuntu - RAM Cleanup

sync; echo 3 > /proc/sys/vm/drop_caches

Websphere EJB Development

Developing Stateless Session Beans with Rational Application Developer

Prepare the development environment by following the steps below.
-> Create a new EAR Project
-> Add EJB Project, Web Project and EJBClient Project

Creating New Session Bean

Expand Deployment Descriptor of the EJB Project and select Session Beans
Right click and create new Session Bean


-> Select "Session Bean"
-> Provide a Bean name
-> Check "Generate an annotated bean class"
-> Next


-> Select Session type "Stateless"
-> Select Transation type "Container"
-> Check "Remote Client View"
-> Finish

Implementing And Promoting New Methods

-> Implement methods in the newly created session bean
-> Right click the methods
-> Select Enterprise Beans
-> Click "Promote to Remote Interface"

Preparing for Deployment

-> Right click the deployment descriptor
-> Select "Prepare for Deployment"

Configuring Web Application

Open the deployment descriptor of the Web Application
Select References tab
Click "Add..." to add a new reference

-> Select "EJB reference"
-> Browse the projects and select the ejb to add
-> Select the RefType as Remote


Make sure the name of the Reference is same as the last two portions of the COMP_NAME of the Home Interface ( for eg. if COMP_NAME = "java:comp/env/ejb/TestBean"; then RefName = ejb/TestBean )

Creating and Using the EJB

Example
try {
TestHome testH = TestBeanUtil.getHome();
Test test = testH.create();
}catch(Exception exp) {
exp.printStackTrace();
}

Classloader Settings

Set the classloader as "Application" instead of "Module" for the Enterprise application

ASUS USB-N13 UBUNTU (LUCID) DRIVER

Copied From
http://swiss.ubuntuforums.org/showthread.php?t=1419504&page=2
Post# 17

1)  Download 
    http://swiss.ubuntuforums.org/attachment.php?attachmentid=148998&d=1267737748
2)  Extract to ~/Desktop/2009
3)  cd ~/Desktop/2009
4)  sudo su
5)  gedit os/linux/config.mk
    Find these lines:
    -------------------------------------
    HAS_WPA_SUPPLICANT=n
    HAS_NATIVE_WPA_SUPPLICANT_SUPPORT=n
    -------------------------------------
    Change them to =y
    Save and close gedit. 
6)  gedit os/linux/usb_main_dev.c
    Add a new line:
    -------------------------------------
    {USB_DEVICE(0x0B05,0x1784)}, /* Asus 3070 */
    -------------------------------------
    Save and close gedit.
7)  make
8)  make install
9)  cp RT2870STA.dat  /etc/Wireless/RT2870STA/RT2870STA.dat
10) gedit /etc/modules
    Add lines
    -------------------------------------
    rt2870sta
    rt3070sta
    -------------------------------------
    to the end of the table
11) reboot