A good password has the problem of being difficult to remember. And sometimes you might need to get in to a system where the root password is long forgotten (or left with the system administrator before you).

You can Change your User Password and Profile easily in Ubuntu.
Now You will get a screen as Below. At right top corner you can select change password and change your password

A number of tricks and shortcuts can save you time and keystrokes when you’re using bash to knock out various chores. Here are five handy tips to get you started.

In this article, I'm going to show you a number of simple, yet highly useful tricks that will make your scripting life easier. True, this article may appeal to the more geeky segment of my readers, but there's no reason to stop reading.

Every now and then, I see people make the following claim:
Ubuntu has a root password; they just don't tell the user what it is.

Not to sound like a Luddite, but sometimes the old ways are best. When it comes to Web browsers, that's not very often, but knowing your way around a text-mode browser like w3m does come in handy from time to time.

Here are 10 simple tricks for APT, the Advanced Packaging Tool used on Debian and Debian-based distributions like Ubuntu.

By default, the root account password is locked in Ubuntu - Canonical neither supports nor advocates enabling the root account. This means that you cannot login as root directly or use the su command to become the root user. However, since the root account physically exists it is still possible to run programs with root-level privileges.

How to use RedHat grub to retrieve a lost root password.