Inside a macOS terminal, apart from the general keyboard shortcuts (like closing or opening a new tab), I sometimes find myself in need to do things differently.

Your network interface might not act properly by not having an speed unknown value for example and this is sometimes caused by an abnormal MTU value for your network interface. You can change that using the ifconfig command.

On some machines running Ubuntu frequently, you can easily restart (down/up state) a network interface by ultimately using the ifconfig command.

macOS Catalina

1. Open your terminal and install the bash-completion package using brew:

brew install bash-completion

2. Adjust your .bash_profile by running in your terminal:

echo "[ -f /usr/local/etc/bash_completion ] && . /usr/local/etc/bash_completion" >> ~/.bash_profile

3. Reload your .bash_profile:

source ~/.bash_profile

Ubuntu server 18.04 LTS

1. Check the Apache2 process status

sudo /etc/init.d/apache2 status 

If you’re seeing an “Active (running)“ message then it means that your Apache2 process is still running and we need to stop it.

2. Stop the Apache2 process

sudo /etc/init.d/apache2 stop

3. Check the Apache2 process status, again.

sudo /etc/init.d/apache2 status

Notice that now, the “Active” section says “inactive“.

4. Uninstall Apache2 by purging.

sudo apt-get purge apache2* -y

5. Verify if anything related to the Apache2 service has been removed

 sudo apt-get autoremove -y

6. Verify if any file or folders have been left on the server.

whereis apache2

If the result/output of the command above is empty, then Apache2 has been successfully uninstalled from your Ubuntu 18.04 LTS.