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:
1 | 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:
1 | FOR /R %f IN (*.jade) DO REN "%f" *.pug |