Sublime Merge is a powerful Git GUI client from the maker of Sublime Text. I love it because it's clean, easy to use, easy to understand, and unmatched performance and visualization. 

To install Sublime Merge on Ubuntu 20.04, please run the following command on the Terminal


1. Install the GPG key:

$ wget -qO - | sudo apt-key add -


2. Ensure apt is set up to work with https sources:

$ sudo apt-get install apt-transport-https


3. Select stablechannel to use:

$ echo "deb apt/stable/" | sudo tee /etc/apt/sources.list.d/sublime-text.list


4. Update apt sources and install Sublime Merge

$ sudo apt-get update

$ sudo apt-get install sublime-merge