How to Change Text Inside Multiple Files in Unix

I recently moved my feed from feeds.feedburner.com/labnol to feeds.labnol.org/labnol and so had to change the tag inside all HTML documents to reflect the change.

One of the options was to do a vi *.html and replace text manually but here’s a simple solution:

sed -e 's/old-address/new-address/' -i *.html

If you want to replace text in just a couple of files, replace with the wildcard character with the name of the files.

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