[ Thanks to Falko
Timme for this link. ]
“1 Preliminary Note
I will show how to do this on the desktop (with Synaptic) and on
the command line. I’m using a USB stick to store the text file;
that way I can simply plug in the USB stick with the text file into
the other computer and start the package installation there.“If you try this, please make sure the the file
/etc/apt/sources.list is identical on both systems (if you like,
you can also copy that file to the USB stick so that it can be used
on the other computer).”