Thanks that worked. So th script could be improved by writing out the error message and by testing if a libcurl4 is installed.

I wanted to try Domoticz. I went to the website and saw the installation instructions: "curl -sSL install.domoticz.com | sudo bash" Wow, I thought, this is nice. The output of the installation script was: ::: Your system is up to date! Continuing with Domoticz installation... ::: Checking for apt ...