Find-replace in multiple files recursively from Linux command line

It is a 2-steps process issued in one command from a terminal. (1) Use grep to find occurrences of the search-term, then (2) sed to replace with a new word. (xargs pipes the output of grep to sed.)

grep -rli 'old-word' * | xargs -i@ sed -i 's/old-word/new-word/g' @

An example: when you move your personal github.io page to a project page, then {{ site.baseurl }} should be specified at your Jekyll’s _config.yml. Otherwise links will not work. So you can use the following command from your project folder to keep your links alive:

Notes

• Thanks for the tip to this thread on SO.