You can also install additional programs on the console (mate terminal). To do this, you must be logged in as the root user. In the terminal, enter 'su' followed by the root password. After that the usual commands are available.
apt-get update apt-get install xxx apt-cache search xxx
Again, once installed, programs must be backed up for the next boot. To do this, you can recopy the packages accordingly:
cd /var/cache/apt/archives cp *.deb /home/data/archivista/cust/desktop/debs