Search and Replace a text string in the post database

[simonk (Simon King)]

Maybe this post will help?

Replace a string in all posts

This guide explains how to replace a string in all posts within a Discourse instance. Required user level: System Administrator Console Access Required Want to replace a string in all the posts on a site? Let’s get started! WARNING: We strongly recommend you take a full backup before proceeding, and make sure your string replacement is specific enough to affect only the places you want it to. If this string replacement goes wrong, every…