Inputting Unicode characters in Ubuntu

This blog is a reminder for myself how to use the keyboard to input Unicode characters in Ubuntu.

Somethings I just can not remember. Every time I need to enter a Unicode character I realize that I do not remember how to do this in Ubuntu, without resorting to graphical character picker.

So this post will settle the score once and for all, and hopefully after this I will be able to remember it. (At least I will be able to come here for reference.)

The keyboard shortcut to enter a Unicode character in Ubuntu is:

Ctrl+Shift+u <Unicode>

For example to enter a € symbol type Ctrl+Shift+u 20ac. All that is left is learning usefull Unicode codes.

Update
Here's a unicode character map