$ df -h
Filesystem                         Size  Used Avail Use% Mounted on
Filesystem                         Size  Used Avail Use% Mounted on
udev                               3.9G     0  3.9G   0% /dev
tmpfs                              797M  1.4M  795M   1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv   48G   14G   33G  30% /
tmpfs                              3.9G  4.0K  3.9G   1% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
tmpfs                              3.9G     0  3.9G   0% /sys/fs/cgroup
/dev/sda2                          976M  203M  707M  23% /boot
/dev/loop0                          56M   56M     0 100% /snap/core18/2066
/dev/loop2                          33M   33M     0 100% /snap/snapd/12159
/dev/loop1                          56M   56M     0 100% /snap/core18/2074
/dev/loop3                          32M   32M     0 100% /snap/snapd/10707
/dev/loop4                          70M   70M     0 100% /snap/lxd/19188
/dev/loop5                          68M   68M     0 100% /snap/lxd/20326

$ lsblk
NAME                      MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
loop0                       7:0    0 55.4M  1 loop /snap/core18/2066
loop1                       7:1    0 55.5M  1 loop /snap/core18/2074
loop2                       7:2    0 32.3M  1 loop /snap/snapd/12159
loop3                       7:3    0 31.1M  1 loop /snap/snapd/10707
loop4                       7:4    0 69.9M  1 loop /snap/lxd/19188
loop5                       7:5    0 67.6M  1 loop /snap/lxd/20326
sda                         8:0    0  200G  0 disk
├─sda1                      8:1    0    1M  0 part
├─sda2                      8:2    0    1G  0 part /boot
└─sda3                      8:3    0  199G  0 part
  └─ubuntu--vg-ubuntu--lv 253:0    0   49G  0 lvm  /
sr0                        11:0    1 1024M  0 rom