You should open a terminal application and enter this command: man sudo You have problems because your sudo is configured to require a password for the user who is executing sudo.
-- Sami Varghese Renny kirjoitti 26.6.2012 kello 16.20: > > Yeah, i changed like /usr/share/tomcat6/.jenkins/Eulen/killpostgres.sh , > still i am getting tty not present error and no askpass program specifed. > > >