What does [Ctrl] + [Shift] + [e] do, while typing text?

I already knew that Ctrl+Shift+u would allow to type a character by giving its Unicode hexadecimal representation: an underlined u appears, you type the code and hit Enter.

For example, Ctrl+Shift+u; e; 9; Enter gives the character é.

Now I've just noticed that Ctrl+Shift+e lets an underline e appear, in a very similar manner, but I can't figure out what it does.

Does someone know? Thank you in advance.

Solution 1:

Ctrl+Shift+e is the emoji entry shortcut/hotkey sequence.

It produces an underlined "e̲", if you type "joy" after it (so it looks like "e̲j̲o̲y̲") the whole word will be underlined. On pressing a whitespace entry key, like spacebar, you should then get the "e̲j̲o̲y̲" text changed to "😂" (the emoji character selected by your current application). 👍

Solution 2:

Just issue the command bellow:

ibus-setup

And change it on the Emoji tab as the picture bellow