remove application 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: ubuntu apt uninstall

sudo apt-get remove <application_name>

Example 3: ubuntu remove application

$ sudo apt-get remove package-name

Example 4: ubuntu remove application icon

remove application icon file from "/usr/share/applications" or "~/.local/share/applications".