how to completely remove apache2 from ubuntu code example

Example 1: remove apache2 from ubuntu

#stop the apache2 service 
$ sudo systemctl stop apache2 

#remove apache2 packages
$ sudo apt-get purge apache2 apache2-utils apache2-bin apache2.2-common

# cleanup
$ sudo apt-get autoremove

# check if the apache has been removed:
#1- following command line should return a blank line
$ which apache2   
# 2- following command line should return apache2: Failed to start apache2.service: Unit apache2.service not found.
$ sudo systemctl start apache2

Example 2: remove apache ubuntu

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