[opan]

Ah, I believe Greenclip has that feature.

Personally I hate when people copy/paste images as it often results in bad filenames like "image.jpg" (as in literally the word image) and then requires me to rename them when saving them when the file probably had a perfectly good default filename. I make sure to save images and reupload them, and I have a one-liner to check my pictures dir for bad filenames in case I saved one without noticing (worst case I run my routine rsync and am repeatedly replacing some image.jpg with a different picture). I also made a short script to put the current unix time on my clipboard in case I need to rename some of these bad files in a pinch. I tend to think less of people contributing to this bad filename problem, although chat programs and such could likely detect and "fix" it on their end also.

My screenshot workflow saves an image with the dimensions and date/time in it to my ~/scrot directory and then I can quickly post it somewhere by just sorting that dir by mtime with newest files on top.