How to quickly find and edit code from themes and plugins

Working with WordPress can be easy. When compared to many other content management systems, it really is easy. Even you if you have nothing to do with the code or design, you can still have your WordPress site up and running, and you can start writing and publishing content in a matter of minutes. If you need to extend your WordPress site, you can do that by installing some of the millions of plugins and themes available on the Internet. But if you get a bit more serious about your site, sooner or later you will need to customize a thing or two. No matter how good a theme or plugin is, how many options do you get with it, it simply isn’t possible to make everything editable. For example, you will be able to change a title and some important buttons, but how do you make a change if a particular element can’t be changed via Customizer and theme’s/plugin’s options? You modify it yourself.
Depending on how much you know about WordPress, modifying files can be a two-minute job, or it may crash your entire site after spending hours on customization. Before you start modifying the file, please make sure that you’re aware of what you’re doing and that you always have a backup safely placed
Source: https://managewp.org/articles/13524/how-to-quickly-find-and-edit-code-from-themes-and-plugins

source https://williechiu40.wordpress.com/2016/10/03/how-to-quickly-find-and-edit-code-from-themes-and-plugins/