Rewrite URLs or Enable with mod_rewrite for Apache2 on Ubuntu 16.04

In this POST I will show how to enable mod_rewrite for apache2

First, we need to install  Apache2, Before that Update Ubuntu with below command.

sudo apt-get update

Install Apache

sudo apt-get install apache2

Now activate mod_rewrite using below command

error unknown filesystem entering rescue mode grub rescue ubuntu

In this POST I will show how to get rid of

error: unknown filesystem.
Entering rescue mode...
grub rescue

Switch on the System, wait untill you get the Grub Rescue Screen.
Type the following commands

ls

It will display list of partions you had in your system.
You will get something like this (hd0),(hd0,msdos1)(hd0,msdos2)(hd0,msdos3) based on no of partitions

set prefix= (hd0,msdos1)/boot/grub

If it’s not the root drive you will get an error message "unknown filesystem". In that case try the same command with the next partion.
You need to find which drive is Ubuntu root. For that type the following:
Ex: set prefix=(hd0,msdos2)/boot/grub

set prefix=(hd0,msdos1)/boot/grub

insmod normal

normal

sudo update-grub

sudo grub-install /dev/sda

If you are not getting an error: You can proceed to the next command after that:
Your PC will now boot successfully. Now select Ubuntu & login.
Open Terminal( Ctr+Alt+T or use the search)
Now the bootloader error is fixed you should be able to boot your System normally & even your data is intact.

How to create a file, write, read and append to file in python

In the post I will show how to create a File, Write, read and append in python.

Before that lets see the File Modes in Python

File Modes in Python
Mode	Description
'r'	Open a file for reading. (by default)
'w'	Open a file for writing. Creates a new file if it does not exist or deleates the file if it exists.
'x'	Open a file for exclusive creation. If the file already exists, the operation fails.
'a'	Open for appending at the end of the file without replacing it. Creates a new file if it does not exist.
't'	Open in text mode. (by default)
'b'	Open in binary mode.
'+'	Open a file for updating (reading and writing)

How to set up your user account to Hibernate on critical battery level in Ubuntu

In this post I will show how to hibernate Ubuntu on critical battery level.
In the previous posts I had shown How to...

• Cannot Start Omnisharp [ERROR] Error: spawn cmd ENOENT VS Code
• How to create cron job in ubuntu
• How can I hibernate on Ubuntu 16.04?

Set critical battery percentage using the command in terminal

gsettings get org.gnome.settings-daemon.plugins.power percentage-critical

To modify this value, set to 20% by using the below command in the terminal

How can I hibernate on Ubuntu 16.04?

In this post I will show how to Enable Hibernate in Ubuntu.

In the previous posts I had shown How to...

• Cannot Start Omnisharp [ERROR] Error: spawn cmd ENOENT VS Code
• How to create cron job in ubuntu
• How to Install MongoDB on Ubuntu 16.04

OutPut:

How to create cron job in ubuntu

In this POST I will show how to create a cron job in Ubuntu. For this we will use python script to print current date and time in log file.

In the previous posts I had shown How to....

• How to Install MongoDB on Ubuntu 16.04
• Failed to start mongod.service unit mongod.service not found. ubuntu 16.04
• How To Install WordPress, Apache, MySQL and PHP on Ubuntu 16.04

OutPut:

2017-06-10 21:35:01.655477

2017-06-10 21:36:01.686346

2017-06-10 21:37:01.711900

2017-06-10 21:38:01.740353

2017-06-10 21:39:01.767497

2017-06-10 21:40:01.792622

2017-06-10 21:41:01.823149

How To Install WordPress, Apache, MySQL and PHP on Ubuntu 16.04

In this post I will show, how to install WordPress, Apache, MySQL and PHP on Ubuntu 16.04.

Install Apache:

When you’re done installing Apache2, the below commands allow you to start it up

sudo apt-get update
sudo apt-get install apache2

sudo systemctl start apache2
         OR
sudo service apache2 start

Failed to start mongod.service unit mongod.service not found. ubuntu 16.04

In this post I will show you how to resolve Failed to start mongod.service unit mongod.service not found.

Previously I had shown how to install MongoDB on Ubuntu & Windows

• How to Install MongoDB on Ubuntu 16.04
• How to Install MongoDB in Windows
• How to Run MongoDB as Windows service
• How to check MongoDB is running or not
• Asp.Net MVC with MongoDB

First Open Terminal and enter the below command.

sudo vim /etc/systemd/system/mongodb.service

Now it should look as shown below.

How to Install MongoDB on Ubuntu 16.04

In this post I will show how to Install MongoDB on Ubuntu 16.04.
Previously I had shown how to install MongoDB on Windows

• How to Install MongoDB in Windows
• How to Run MongoDB as Windows service
• How to check MongoDB is running or not
• Asp.Net MVC with MongoDB

Execute the following commands in the terminal one by one

Reset MySQL root password in Ubuntu

In this POST I will show how to reset MySQL Server root password in Ubuntu

In the previous posts I had shown how to .....

• Send Email Using ASP.NET CORE 1.1 With MailKit using VS Code in Ubuntu
• Asp.Net MVC Core in UBUNTU and VS Code
• Starting with Asp.Net Core using Visual Studio Jquery DataTables

Use the following steps to reset a MySQL root password by using the command line interface in Linux.

Stop the MySQL service

  

sudo /etc/init.d/mysql stop

Start MySQL without a password

Asp.Net MVC Core in UBUNTU and VS Code

In the previous POSTS I had shown how to

• Installing .NET Core on Linux/Ubuntu 16.04
• Create New Project In Ubuntu/Linux using .Net Core
• Create Asp.Net MVC Project in Ubuntu/Linux using .Net Core

Previously I had shown CRUD operations Using Asp.Net MVC Core with Visual studio 2017 in Windows. 

• 01 - Starting with Asp.Net Core using Visual Studio
• 02 - Starting with Asp.Net Core using Visual Studio to Display Employee List
• 03 - Starting with Asp.Net Core using Visual Studio to Insert New Employee
• 04 - Starting with Asp.Net Core using Visual Studio to Edit Employee
• 05 - Starting with Asp.Net Core using Visual Studio to Delete Employee
• 06 - Starting with Asp.Net Core using Visual Studio Jquery DataTables

IN this post I will show how to create new Asp.Net MVC project and how to use Visual Studio Code.