If you have multiple files having an extension like jpeg and you want to batch rename them to `jpg` as extension you can do that with a single line of code:

FOR /R %f IN (*.jpeg) DO REN "%f" *.jpg

In my case I wanted to batch rename all my template files from `.jade` to `.pug`, as there was an issue with trademarks, so the command would change to:

FOR /R %f IN (*.jade) DO REN "%f" *.pug

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