i cant get into the super user in the terminal

Asked by anurajbe@in.com

i cant switch to super user ie to root directory in the terminal mode...so i cant instal any application into the system....
when i open the terminal i can find a statement like this "gokulam@ubuntu:~$ ",then i put this command "su "
then ask me to enter the password ,when i enter password that i used in the login i got an error "su: Authentication failure"
i am wating for your response

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Xiao Shi Zi (lionel-bogaert) said :
#1

try
sudo su -

enter the password

if you are a super user privileged person on that pc this will do

Greetings Xiao Shi Zi.

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Xiao Shi Zi (lionel-bogaert) said :
#2

once in the su type
exit
to return to normal user mode.

Greetings Xiao Shi Zi.

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Jeff Lane  (bladernr) said :
#3

If all you're trying to do is install software:

IN the GUI, run Software Center (Applications/Ubuntu Software Center) or Synaptic (System/Administration/Synaptic Package Manager).

In the terminal, use sudo:

sudo apt-get install <package>

If it's a deb package you've already downloaded from somewhere:

sudo dpkg -i <package name>

Though I'd suggest using apt-get to pull whatever you are installing from a repository so you don't have to worry about dependency issues. (Software Center and Synaptic also handle dependencies for you).

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