Ubuntu Notes: Error /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable

To solve this bug in terminal: 

sudo fuser -v /var/cache/debconf/config.dat

Get the PID then

sudo kill <PID> 

If not successfull, then

sudo kill -9 <PID>

Bike notes from chatGpt: Good 100cc bike for 6feet tall

If you are 6 feet tall and looking for a 100cc bike, here are a few options that you can consider:

1. Bajaj Platina 100: The Bajaj Platina 100 is a popular choice among tall riders. It has a comfortable riding position, with a long and wide seat that provides ample space for the rider. The bike also has good suspension, which makes for a smooth ride.

2. Hero Passion Pro: The Hero Passion Pro is another good option for tall riders. It has a comfortable riding position, with a long and wide seat that provides ample space for the rider. The bike also has good suspension, which makes for a smooth ride.

3. Honda CD 110 Dream: The Honda CD 110 Dream is a stylish and comfortable bike that is well-suited for tall riders. It has a long and wide seat that provides ample space for the rider, and good suspension that makes for a smooth ride.

4. TVS Radeon: The TVS Radeon is a comfortable and stylish bike that is ideal for tall riders. It has a long and wide seat that provides ample space for the rider, and good suspension that makes for a smooth ride.

It is important to note that these bikes have different features and specifications, so it is recommended that you test ride them to see which one suits you best. Additionally, you should consider your budget, riding style, and requirements before making a final decision.

Bike notes from chatGpt: What would be better for me 100cc or 125cc or 150cc or 200cc bike?

 The choice between a 100cc, 125cc, 150cc, or 200cc bike depends on various factors such as your riding requirements, budget, and personal preferences. Here are some general guidelines that can help you choose the right bike:

1. 100cc bikes are ideal for short commutes and city riding. They are fuel-efficient, affordable, and easy to handle, making them a good choice for beginners or riders on a budget.

2. 125cc bikes offer a bit more power than 100cc bikes, making them suitable for longer commutes and occasional highway riding. They also offer better acceleration and are more comfortable to ride for longer periods.

3. 150cc bikes are more powerful than 100cc and 125cc bikes, making them suitable for riders who want a bit more speed and acceleration. They are good for both city and highway riding, but they are generally more expensive than smaller bikes.

4. 200cc bikes are the most powerful among the options you mentioned, and they are suitable for riders who want a lot of speed and acceleration. They are good for highway riding and long commutes, but they can be more expensive to maintain and insure than smaller bikes.

Ultimately, the choice between a 100cc, 125cc, 150cc, or 200cc bike depends on your personal preferences, budget, and riding requirements. You should test ride different bikes to see which one feels most comfortable and suits your needs the best.

Bike Notes from chatGpt: Economy speed range for 100cc, 125cc, 150cc, 200cc bikes?

 The economy speed range for 100cc, 125cc, 150cc, and 200cc bikes can vary depending on several factors such as engine capacity, fuel efficiency, weight, road conditions, and riding style. However, in general, here are the average economy speed ranges for these bikes:

1. 100cc bikes: The economy speed range for most 100cc bikes is between 40-60 km/h (25-37 mph). Riding within this range can help optimize fuel efficiency and prolong the life of the bike.

2. 125cc bikes: The economy speed range for most 125cc bikes is between 50-70 km/h (31-43 mph). Riding within this range can help balance fuel efficiency and performance.

3. 150cc bikes: The economy speed range for most 150cc bikes is between 60-80 km/h (37-50 mph). Riding within this range can offer good fuel efficiency and decent performance.

4. 200cc bikes: The economy speed range for most 200cc bikes is between 70-90 km/h (43-56 mph). Riding within this range can offer good fuel efficiency and optimal performance.

It's important to note that these are general guidelines, and the actual economy speed range may vary depending on several factors. It's always best to consult the bike's owner's manual and follow the recommended speed and maintenance guidelines for optimal performance and fuel efficiency.

Java notes from chatGpt: How to create Apache Ant-Ivy project?

 How to create Apache Ant-Ivy project?

Apache Ant is a Java-based build tool that is commonly used for building and deploying Java applications. Ivy is a dependency management tool that can be used with Ant to manage project dependencies.

Here is a brief tutorial on how to use Apache Ant with Ivy:

1. Install Apache Ant and Ivy: Download and install the latest versions of Apache Ant and Ivy from their respective websites.

2. Create an Ant build file: Create a build.xml file in your project directory and add the necessary tasks for building your project. This file will define the build process for your project.

3. Set up Ivy: Create an ivysettings.xml file in your project directory and configure it to use the repositories where your project dependencies are stored. You can also define the dependency versions and configurations that you want to use.

4. Define dependencies in build.xml: In your build.xml file, use the ivy:resolve task to download and resolve your project dependencies. You can also use the ivy:cachepath task to create a classpath for your project based on the resolved dependencies.

5. Use dependencies in your project: Once the dependencies are resolved, you can use them in your project by adding them to your classpath or referencing them in your code.

Here's an example build.xml file that uses Ivy to resolve dependencies:

```

<project name="myproject" default="compile">

 

  <target name="resolve-dependencies">

    <ivy:resolve/>

    <ivy:report todir='ivy-reports'/>

  </target>

  <target name="compile" depends="resolve-dependencies">

    <javac srcdir="src" destdir="bin">

      <classpath>

        <ivy:cachepath pathid="compile.path"/>

      </classpath>

    </javac>

  </target>

 

</project>

```

This build.xml file defines two targets - "resolve-dependencies" and "compile". The resolve-dependencies target uses Ivy to resolve dependencies and generate a report, while the compile target uses the resolved dependencies to compile the project code.

This is just a basic example of how to use Apache Ant with Ivy. There are many other features and configurations that you can use to customize your build process. For more information, you can refer to the official documentation for Apache Ant and Ivy.

===========================

How to create ivysettings.xml & use in build.xml file?

To create an ivysettings.xml file and use it in your Ant Ivy project, follow these steps:

1. Create ivysettings.xml file: Create a new file named "ivysettings.xml" in the root directory of your Ant project. This file will contain the configuration settings for Ivy.

2. Add settings to ivysettings.xml: Open the ivysettings.xml file and add the settings you want to use for your project. For example, you can specify the locations of your repository servers, the credentials to access them, and any other configurations you want to use. Here's an example of a simple ivysettings.xml file:

```

<ivysettings>

  <settings defaultResolver="main" />

  <credentials host="myrepo.com" realm="My Repository Realm"

     username="myuser" password="mypassword"/>

  <resolvers>

    <ibiblio name="main" root="http://myrepo.com/repo/" m2compatible="true"/>

  </resolvers>

</ivysettings>

```

This example defines a default resolver named "main" that uses an Ivy repository located at "http://myrepo.com/repo/". It also sets up credentials for accessing the repository.

3. Add ivysettings.xml to build.xml: Open your build.xml file and add a reference to the ivysettings.xml file by using the "ivy:settings" task. Here's an example:

```

<project name="myproject" default="resolve">

  <target name="resolve">

    <ivy:settings file="ivysettings.xml"/>

    <ivy:retrieve pattern="lib/[artifact]-[revision].[ext]"/>

    <ivy:resolve/>

  </target>

</project>

```

This example defines a target named "resolve" that uses the ivy:settings task to reference the ivysettings.xml file. It also uses the ivy:retrieve and ivy:resolve tasks to retrieve dependencies and resolve them.

4. Run the build: Save your build.xml file and ivysettings.xml file, and then run the build using the "ant" command. Ivy will use the settings defined in ivysettings.xml to retrieve and resolve your project dependencies.

That's it! You now know how to create an ivysettings.xml file and use it in your Ant Ivy project to manage dependencies.

Ubuntu 22.03 Notes: Keyboard Shortcut to Switch between multiple moniters

 Super + P

Above combination in keyboard will do the work

Note: Super key in keyboard is (normally what we call as Windows button in keyboard)

Ubuntu 22.04 -Virtual Box Notes

 Uninstall Virtual Box 6.1 From Ubuntu

sudo apt-get remove --purge virtualbox-6*

Then run auto-clean command.

--------------------------------------------

Reinstalling Virtual Box 7.0 in Ubuntu

sudo vim /etc/apt/sources.list

Add this to the file

deb [arch=amd64 signed-by=/usr/share/keyrings/oracle-virtualbox-2016.gpg] https://download.virtualbox.org/virtualbox/debian jammy contrib

Add signature using command

wget -O- https://www.virtualbox.org/download/oracle_vbox_2016.asc | sudo gpg --dearmor --yes --output /usr/share/keyrings/oracle-virtualbox-2016.gpg

Install Virtual box 7.0 latest version using command

sudo apt-get update
sudo apt-get install virtualbox-7.0

======================================

Download respective extension pack from link https://www.virtualbox.org/wiki/Downloads

Open VirtualBox->File->Tools->Extension Pack Manager

Remove Old extension pack  if there

Install->Browse current extension pack & Install