If you can get Notepad++ working on Linux through Wine, as per [this page](https://itsfoss.com/notepad-plus-plus-linux/), you can record a script in it to do the job. Don't know how difficult it will be to do across multiple files, as far as opening them individually goes, but the script can be assigned a keyboard shortcut to make it easier. You can also use extended characters to search and replace every occurrence without having to trigger the macro for each instance in the file.
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