To install Insync on your Linux machine you need to create a insync.list file in the sources.list.d folder.
And, here’s an easy way to do it via CLI.
I am using Ubuntu 18.04 (bionic beaver) and trying to install Insync that requires a insync.list file. And, below is the command that I will run:
echo "deb http://apt.insync.io/ubuntu bionic non-free contrib" | sudo tee /etc/apt/sources.list.d/insync.list
As soon as the command runs, the required insync.list file is instantaneously created in the specified folder.
If you’re using a different Linux version then you will have to modify the command as per the version you’re using.
And, it should show the magic.
If you’re experiencing some kind of problem then feel free to let me know in the comments, right now.