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From: Angus Comber <anguscomber@gmail.com>
Newsgroups: gmane.emacs.help
Subject: Search and replace for a single file using a pattern file
Date: Thu, 4 Jan 2018 02:02:29 -0800 (PST)
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I have some horrible logs where integers are printed for states and I want to do a global search and replace on the file to eg replace integer x with a string.

I can obviously do individually using c-m-% but that is fairly laborious.  So use of a search and replace mapping in a text file would be really convenient.

Is this possible?  any suggestions?