commandline session
$df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 224G 7.5G 205G 4% /
udev 10M 0 10M 0% /dev
tmpfs 336M 664K 336M 1% /run
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 672M 19M 1004M 3% /run/shm
$du -sh /etc/
du: cannot read directory ‘/etc/polkit-1/localauthority’: Permission denied
du: cannot read directory ‘/etc/ssl/private’: Permission denied
7.6M /etc/
$sudo du -sh /etc/
[sudo] password for jeffrin:
7.7M /etc/
$free
total used free shared buffers cached
Mem: 3440280 1430032 2010248 0 93552 501752
-/+ buffers/cache: 834728 2605552
Swap: 0 0 0
$sudo du -sh /usr/
3.6G /usr/
$sudo du -sh
2.6G .
$
following video tutorial content may not be accurate
[youtube https://www.youtube.com/watch?v=CeDfZQGFIk4?rel=0&w=560&h=315]