Can I change the "name" in terminal?

[Leonin]

I didnt think that much of it when i installed kubuntu but I should have changed my computer name to something better.
As it is now the long odd number/letter combination (mikael@c-d726e353:~&) annoys me big time. So my question is, are there anyway to change the last part (c-d726e353) to something shorter without reinstalling everything.
Hope someone knows what to do.

Thanks/
Leonin

[nixternal]

Re: Can I change the "name" in terminal?

type> hostname name_you_want

[Leonin]

Re: Can I change the "name" in terminal?

Well I did that but nothing happened. Or atleast nothing that i can see.

[Leonin]

Re: Can I change the "name" in terminal?

Hmm now it "works", but it broke everything. When I try sudo apt-get i get the following error; sudo: unable to look up wahlin via gethostbyname()   

wahlin is the name that i changed it too. Any idea on how I can repair it?

"edited"
Well I did a quick restart and everything works fine now. Mainly because the hostname got reset to the install version. So i guess I'm back on square one. =) "

[kubicle]

Re: Can I change the "name" in terminal?

Hmm now it "works", but it broke everything. When I try sudo apt-get i get the following error; sudo: unable to look up wahlin via gethostbyname()

sudo can start hickuping if you edit hostname 'on the fly'...to avoid this it is a good idea to edit from a root terminal ('sudo -i') so you don't have to rely on sudo.

try a reboot to fix it, if it doesn't work, check that the hostname matches in /etc/hosts and /etc/hostname.

you can start in recovery mode if you need to edit them (recovery console logs you in as root)

[Leonin]

Re: Can I change the "name" in terminal?

sudo -i, i´ve always thought that when I typed sudo "something, something" I was root. You learn something everyday.
Anyway. How do I change the host name, not on the fly? By editing the hostname in /etc/hosts and /etc/hostname?

[kubicle]

Re: Can I change the "name" in terminal?

sudo -i, i´ve always thought that when I typed sudo "something, something" I was root. 

'sudo -i' is just a special use of sudo (very similar to 'sudo su' and 'sudo -s')...with it you can get into a root terminal to perform multiple commands as root so you don't have to use sudo with every command (which comes is handy if a command will break sudo functionality )

sudo "something, something" runs the commands as root, but root privileges apply for those commands only.

Anyway. How do I change the host name, not on the fly? By editing the hostname in /etc/hosts and /etc/hostname?

That's one way to do it

[Leonin]

Re: Can I change the "name" in terminal?

great now it works. Thanks for all your help .