querry: root password!

[Nils Kassube]

Nikunj Kumar wrote:
> We have a file which is owned by the 'root' user under /etc/. We want
> to change the ownership of this file and give it red/write/execute
> permission to all the users. So the command we look forward to run as a
> 'root' user is: chmod 777 <filename>
> As I also understand in UBUNTU we cannot login as a 'root' user so
> using 'su' is the only option left.

Usually the only option is to use sudo, unless you have set a root 
password. See <https://help.ubuntu.com/community/RootSudo> for more info.


Nils