Command:
$ df
Result:
Filesystem 1K-blocks Used Available Use% Mounted on
udev 359712 0 359712 0% /dev
tmpfs 75824 2596 73228 4% /run
/dev/sda1 7350760 7137152 0 100% /
tmpfs 379100 0 379100 0% /dev/shm
tmpfs 5120 0 5120 0% /run/lock
tmpfs 379100 0 379100 0% /sys/fs/cgroup
tmpfs 75824 0 75824 0% /run/user/1000
Command:
$ sudo apt-get clean
$ df
Result:
Filesystem 1K-blocks Used Available Use% Mounted on
udev 359712 0 359712 0% /dev
tmpfs 75824 2596 73228 4% /run
/dev/sda1 7350760 6201168 753152 90% /
tmpfs 379100 0 379100 0% /dev/shm
tmpfs 5120 0 5120 0% /run/lock
tmpfs 379100 0 379100 0% /sys/fs/cgroup
tmpfs 75824 0 75824 0% /run/use