My hard disk is so full that I cannot even download a 2 page pdf file from the internet. This is surprising because I don't have very much on this computer (just pdfs from work). More surprising is that I get the same error even after deleting many pdf's and photos that are together much bigger than the pdf I am trying to download and emptying the trash.
I suspect that this is because I used
sudo apt-get update and
sudo apt-get upgrade many times in rapid succession as an attempt to solve an unrelated problem. However, I have no idea what I am doing.
Sys. de fichiers Taille Utilisé Dispo Uti% Monté sur /dev/sda5 15G 15G 0 100% / none 4.0K 0 4.0K 0% /sys/fs/cgroup udev 1.8G 4.0K 1.8G 1% /dev tmpfs 366M 1.3M 365M 1% /run none 5.0M 0 5.0M 0% /run/lock none 1.8G 84K 1.8G 1% /run/shm none 100M 24K 100M 1% /run/user overflow 1.0M 1.0M 0 100% /tmp /dev/sda7 59G 70M 56G 1% /opt /dev/sda8 118G 5.6G 106G 6% /home /dev/sda9 261G 60M 248G 1% /u/scratch