I had installed Jenkins in my Ubuntu 12.04. And i forgot my Jenkins password
kumar@Ubuntu:~$ sudo su -l jenkins
jenkins@Ubuntu:~$ rvm reload
RVM reloaded!
jenkins@rome:~$ rvm install 2.0.0
Searching for binary rubies, this might take some time.
Installing requirements for ubuntu, might require sudo password.
[sudo] password for jenkins:
Sorry, try again.
[sudo] password for jenkins:
Sorry, try again.
[sudo] password for jenkins:
Sorry, try again.
sudo: 3 incorrect password attempts
Please let me know how to recover the password. Thanks