ray@ray-Kudu-Pro:~$ df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            3.9G     0  3.9G   0% /dev
tmpfs           787M  2.0M  785M   1% /run
/dev/sda1        45G   37G  6.3G  86% /
tmpfs           3.9G     0  3.9G   0% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
/dev/loop0      3.8M  3.8M     0 100% /snap/gnome-system-monitor/51
/dev/loop1       88M   88M     0 100% /snap/core/5742
/dev/loop2      3.8M  3.8M     0 100% /snap/gnome-system-monitor/54
/dev/loop3       13M   13M     0 100% /snap/gnome-characters/124
/dev/loop4       15M   15M     0 100% /snap/gnome-logs/43
/dev/loop5      141M  141M     0 100% /snap/gnome-3-26-1604/70
/dev/loop6       35M   35M     0 100% /snap/gtk-common-themes/808
/dev/loop9      141M  141M     0 100% /snap/gnome-3-26-1604/74
/dev/loop8       15M   15M     0 100% /snap/gnome-logs/45
/dev/loop12     5.0M  5.0M     0 100% /snap/canonical-livepatch/50
/dev/loop11      88M   88M     0 100% /snap/core/5662
/dev/loop10      13M   13M     0 100% /snap/gnome-characters/139
/dev/loop13      88M   88M     0 100% /snap/core/5548
/dev/loop14      15M   15M     0 100% /snap/gnome-logs/40
/dev/loop15     5.0M  5.0M     0 100% /snap/canonical-livepatch/42
/dev/loop16     4.8M  4.8M     0 100% /snap/canonical-livepatch/49
/dev/loop17      13M   13M     0 100% /snap/gnome-characters/117
/dev/loop18      43M   43M     0 100% /snap/gtk-common-themes/701
/dev/loop19     3.8M  3.8M     0 100% /snap/gnome-system-monitor/57
/dev/loop7       35M   35M     0 100% /snap/gtk-common-themes/818
tmpfs           787M   16K  787M   1% /run/user/121
tmpfs           787M   24K  787M   1% /run/user/1000
ray@ray-Kudu-Pro:~$