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 get Geolocation with out using domain name or SSL connection

In this post I will show how to get Geolocation with out using domain name or SSL connection. In the previous POST I had shown how to get Geolocation using html.
In the previous post its not possible to get Geolocation with out using SSL connection or Domain Name.

• How to Get Geolocation in HTML

OutPut:

How to Get Geolocation in HTML

In this post I will show how to get Geolocation.

OutPut:

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 install PIP Virtualenv in windows

In this post I will show how to install pip, virtualenv in windows.
In the previous post I had shown...

• How to install Python in Windows and ubuntu 16.04
• How to Reload jquery datatable ajax
• CRUD operations using Bootstrap Modal in Asp.Net MVC
• Asynchronous Requests for CRUD operations in Asp.Net MVC
• Code First Migrations in MVC 5
• Jquery DataTable in MVC
• Jquery DataTable multisearch paging and Sorting in MVC server side
• Jquery DataTable paging, Sorting and Multi search with datepicker in MVC server side

Continuing the previous post PIP is automatically Installed along with Latest python versions(2.7+ and 3.5+).  To check PIP version

How to install Python in Windows and ubuntu 16.04

In this post I will show how to install Python in windows and ubuntu.

In Ubuntu 16.04:
by default python is installed in ubuntu.

In windows:
First download python 3+ from python.org/downloads as shown below image