Install in debian with apt package manager:
sudo apt-get install sigrok
invoke from the shell with the following command:
pulseview
To start immediately with the connected hardware (hantek-4032l) issue the following command:
pulseview -d hantek-4032l
To get a full list of all supported devices, use the following command:
sigrok-cli -L
Then follow these getting started guides from the official sigrok homepage.