If you do a lot of typing it could be useful to have a program that can easily manage your custom shortcuts, create and test them.
For all these things you can use the program autokey.
AutoKey is a desktop automation utility for Linux and X11. It allows you to manage collection of scripts and phrases, and assign abbreviations and hotkeys to these. This allows you to execute a script or insert text on demand in whatever program you are using.
AutoKey features a subset of the capabilities of the popular Windows-based AutoHotkey, but is not intended as a full replacement. For a Linux-based implementation of AutoHotkey, see IronAHK. AutoKey’s GUI features a number of concepts and features inspired by the Windows program PhraseExpress.