Can not enter password for sudo [duplicate]
- by Michael
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            add repository to ubuntu from terminal with pgp key
                
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            I have used Ubuntu for several years, and I can not enter password for sudo, and this is when i wanna add a key to public.gpg for itunes10 it dos not work, and the password normal works wite sudo but not in the terminal when i enter:
  sudo wget -q "http:// deb.playonlinux.com/public.gpg" -o-  | sudo apt-get add -
and it says this 'sorry try again', and i just had installed itunes10, and have to add a key whit wget to public.gpg, and i tried to enter in the terminal:
 sudo apt-get update
and the password works fine but not whit using sudo wget, and can some one please help.