Filesystem                  1K-blocks      Used Available Use% Mounted on
udev                          2045036         0   2045036   0% /dev
tmpfs                          413144      6756    406388   2% /run
/dev/mapper/ubuntu--vg-root  10742360   8308432   1865200  82% /
tmpfs                         2065704     60984   2004720   3% /dev/shm
tmpfs                            5120         4      5116   1% /run/lock
tmpfs                         2065704         0   2065704   0% /sys/fs/cgroup
/dev/loop0                      68864     68864         0 100% /snap/hexchat/16
/dev/loop1                      75776     75776         0 100% /snap/core/889
/dev/sdb1                   961301832 280721224 631726184  31% /backup
/dev/sda1                      482922    163068    294920  36% /boot
tmpfs                          413140       120    413020   1% /run/user/1000