thomas@thomas:~$ sudo service apache2 stop
[sudo] password for thomas:
Sorry, try again.
[sudo] password for thomas:
thomas@thomas:~$ sudo apt-get purge apache2 apache2-utils apache2.2-bin apache2-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package 'apache2.2-bin' is not installed, so not removed
E: Unable to locate package apache2-common
thomas@thomas:~$ sudo apt-get autoremove
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
  thunderbird-locale-en thunderbird-locale-en-gb thunderbird-locale-en-us
0 to upgrade, 0 to newly install, 3 to remove and 114 not to upgrade.
After this operation, 804 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 247424 files and directories currently installed.)
Removing thunderbird-locale-en-us (1:45.4.0+build1-0ubuntu0.16.04.1) ...
Removing thunderbird-locale-en-gb (1:45.4.0+build1-0ubuntu0.16.04.1) ...
Removing thunderbird-locale-en (1:45.4.0+build1-0ubuntu0.16.04.1) ...
thomas@thomas:~$ whereis apache2
apache2: /usr/sbin/apache2 /usr/lib/apache2 /etc/apache2 /usr/share/apache2 /usr/share/man/man8/apache2.8.gz
thomas@thomas:~$ sudo rm -rf /usr/sbin/apache2
thomas@thomas:~$ sudo rm -rf /usr/lib/apache2
thomas@thomas:~$ sudo rm -rf /etc/apache2
thomas@thomas:~$ sudo rm -rf /usr/share/apache2
thomas@thomas:~$ sudo rm -rf /usr/share/man/man8/apache2.8.gz
thomas@thomas:~$ whereis apache2
apache2:
thomas@thomas:~$ sudo /opt/lampp/lampp restartRestarting XAMPP for Linux 5.5.38-1...
XAMPP: Stopping Apache...fail.
apachectl returned 1.
XAMPP: Stopping MySQL...ok.
XAMPP: Stopping ProFTPD...kill: usage: kill [-s sigspec | -n signum | -sigspec] pid | jobspec ... or kill -l [sigspec]
fail.
kill returned 2.
XAMPP: Starting Apache...already running.
XAMPP: Starting MySQL...ok.
XAMPP: Starting ProFTPD...already running.
thomas@thomas:~$ whereis Mysql
Mysql: