In macOS, when you use the screenshot keyboard shortcuts or the capture tool to grab something on your Mac's screen, the images are saved with a default filename, such as "Screen Shot [date] at [time].png."
If you work with screenshots a lot, this file naming scheme may not be to your taste. But thanks to a simple Terminal command, you can change this default name to something more useful. The following steps show you how it's done.
- Launch the Terminal app (found in Applications/Utilities).
- Input the following command, and type your desired screenshot filename inside the double quote marks, then hit Enter: defaults write com.apple.screencapture name "my screenshots"
That's all there is to it. Try taking a screenshot to see your new image filename in action. Subsequent shots saved in the same location will automatically take a bracketed number – (2) or (3) for example – to differentiate them from each other.
If you want to revert back to the default screenshot filename, use the following Terminal command: defaults write com.apple.screencapture "include-date" 1; killall SystemUIServer