pi@raspberrypi ~ $ sudo apt-get clean
pi@raspberrypi ~ $ sd
-bash: sd: command not found
pi@raspberrypi ~ $ df
Filesystem     1K-blocks      Used Available Use% Mounted on
rootfs           1804128   1625796     86684  95% /
/dev/root        1804128   1625796     86684  95% /
devtmpfs          216132         0    216132   0% /dev
tmpfs              44880       256     44624   1% /run
tmpfs               5120         0      5120   0% /run/lock
tmpfs              89740         0     89740   0% /run/shm
/dev/mmcblk0p1     57288     19024     38264  34% /boot
/dev/sda1      961402192 583308992 329256800  64% /media/RaspiDrive
tmpfs              89740         0     89740   0% /tmp
pi@raspberrypi ~ $ sudo apt-get autoclean
Reading package lists... Done
Building dependency tree
Reading state information... Done
pi@raspberrypi ~ $ df
Filesystem     1K-blocks      Used Available Use% Mounted on
rootfs           1804128   1660848     51632  97% /
/dev/root        1804128   1660848     51632  97% /
devtmpfs          216132         0    216132   0% /dev
tmpfs              44880       256     44624   1% /run
tmpfs               5120         0      5120   0% /run/lock
tmpfs              89740         0     89740   0% /run/shm
/dev/mmcblk0p1     57288     19024     38264  34% /boot
/dev/sda1      961402192 583308992 329256800  64% /media/RaspiDrive
tmpfs              89740         0     89740   0% /tmp