Searching and replacing throughout multiple documents with sed
Back in Chapter 6, we talked about sed and how to use it to search and replace throughout files, one file at a time. Although we're sure you're still coming down off of the power rush from doing that, we'll now show you how to combine sed with shell scripts and loops. In doing this, you can take your search-and-replace criteria and apply them to multiple documents. For example, you can search through all of the .html documents in a directory and make the same change to all of them. In this example (Figure 16.5), we strip out all of the <BLINK> tags, which are offensive to some HTML purists.
Figure 16.5. Create a script to search and replace in multiple documents.
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