How To Uninstall or Remove Apache HTTP Web Server From Debian and Ubuntu-based distros

Uninstalling the Apache server frees valuable system resources. If you no longer need Apache you can uninstall it from your system using these simple steps
These commands apply to Debian, Ubuntu and other Ubuntu-based Linux distributions such as Linux Mint, Elementary OS, Linux Lite, Zorin Os etc.
Remove Apache
Follow these steps to remove Apache2 service using the terminal
First, stop the Apache2 service if it is running with

 sudo service apache2 stop  

Now remove and clean up all the apache2 packages with

 sudo apt-get purge apache2 apache2-utils apache2.2-bin apache2-common  

OR

 sudo apt-get purge apache2 apache2-utils apache2-bin apache2.2-common  

Use the auto remove command to get rid of other dependencies

 sudo apt-get autoremove  

Check whether there are any other configuration files that have not been removed using this command:

 whereis apache2  

It should return

 apache:  

If you get the following output

 apache: /etc/apache2  

Remove the directory and existing configuration files using

 sudo rm -rf /etc/apache2  

Confirm Apache Has Been Removed
You can run the following commands to confirm Apache has been removed

 which apache2  

It should return a blank line
Alternatively, you can start the server using this command

 sudo service apache2 start  

It should return the following output

 Failed to start apache2.service:Unit apache2.service not found  

If you change your mind, you can always install Apache using my simple tutorial here.