zim – a desktop wiki for Ubuntu Linux
Creating a new page is as easy as linking to a non-existing page. This tool is intended to keep track of TODO lists or serve as a personal scratch book.
Install zim in ubuntu
sudo aptitude install zim
This will complete the zim installation.
If you want to open zim Go to Applications--->Accessories--->Zim Desktop Wiki
Once it opens you should see similar to the following screen here you need to click on add
Now you need to enter the name and directory to store your pages
You need to select your page click on open
Here you need to enter your content and save