update error

[permant]

Hi all:
I was trying to update my system using command ,but each time when I trying to do this I got an error:

root@permant-desktop:/home/permant# apt-get install update
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package update
root@permant-desktop:/home/permant#

when I use the Update Manager, it did the job! So why cannot I use the command to update?

[ricardo.gloe]

what you want is just "apt-get update"