# 사람이 읽기 편한 단위(MB, GB)로 파일 시스템별 용량 출력
secu@secu-VirtualBox:~$ df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            463M     0  463M   0% /dev
tmpfs            99M  1.3M   97M   2% /run
/dev/sda5       9.3G  6.2G  2.7G  71% /
tmpfs           491M     0  491M   0% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           491M     0  491M   0% /sys/fs/cgroup
/dev/loop2      256M  256M     0 100% /snap/gnome-3-34-1804/36
/dev/loop0       55M   55M     0 100% /snap/core18/1880
/dev/loop3      218M  218M     0 100% /snap/gnome-3-34-1804/60
/dev/loop1       56M   56M     0 100% /snap/core18/1932
/dev/loop4       63M   63M     0 100% /snap/gtk-common-themes/1506
/dev/loop7       32M   32M     0 100% /snap/snapd/10492
/dev/loop5       52M   52M     0 100% /snap/snap-store/498
/dev/loop6       65M   65M     0 100% /snap/gtk-common-themes/1514
/dev/loop8       50M   50M     0 100% /snap/snap-store/467
/dev/loop9       30M   30M     0 100% /snap/snapd/8542
/dev/sda1       511M  4.0K  511M   1% /boot/efi
tmpfs            99M   20K   99M   1% /run/user/1000