I want to have the file path of a screenshot to be available in the clipboard to paste it directly into some text. Greenshot on Windows can do this in just one keyboard shortcut simultaneously taking the screenshot and putting its file path into the clipboard. How can this be done in Mac?
You can assign a shortcut to a script like this:
f=~/Desktop/$(date +%Y%m%d%H%M%S).png screencapture -i $f osascript -e 'set the clipboard to POSIX file "'$f'"'
One way to do that is to create a service in Automator:
Then give the service a keyboard shortcut from System Preferences.
If you just want to copy the path as text, replace the last line with
printf %s $f | pbcopy.