
Using the shell, you have to reach the folder where files have been downloaded. Usually they will be downloaded in this folder: Using this page from the Microchip website: You will have to download these two Linux files In this case it is possible to install them manually through these commands: Some Linux distributions, 64 bit (like Ubuntu), do not install the libraries needed to make the 32 bit programs working. It is possible to use the command group, that returns the list of groups to which a user belongs, to understand whether the changes have been accepted. Sometimes this change will not be immediately accepted by the system, so it is prudent to repeat the login. This is possible using the shell commands:

I don't know whether it is strictly necessary for the PIERIN, but in general, when serial connections are used it is advisable to add the user to the dialout and tty groups.
