Say you have a bunch of files and you want to quickly change or remove the file extension of all of them. Turns out that’s very simple to do with the command-line in Windows. I had no idea…
Change
ren *.old *.new
Will change all files with ‘old’ file extension to have the ‘new’ file extension.
Remove
ren *.old *.
Will remove the ‘old’ file extension.
Simple!