Here are the shortcuts and Terminal setup commands I used with MacOS.
Create a command to open Sublime from CLI.
sudo mkdir /usr/local/bin sudo ln -s "/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl" /usr/local/bin/subl
Edit the `~/.bash_profile` file, and include the following.
alias edithosts='subl /etc/hosts'
Update the `/etc/hosts` file to block unwanted sites. Use this example hosts file.