on OSX / macOS manage screenshots from the terminal (list, copy, etc.)

osx_latest_screenshot.sh

# print the path to the latest screenshot
latest_screenshot() {
  # get screenshot dir, replace ~ with $HOME (required for ls to work)
  screenshot_dir=$(defaults read com.apple.screencapture location | sed "s;~;$HOME;")
  # use ls -t to order by time, use head -n 1 to get only latest
  file_name=$(/bin/ls -t $screenshot_dir | head -n 1)
  # if REL is passed, show relative path (filename), otherwise show absolute path
  if [[ -z "$REL" ]]; then
    printf "%q\n" "$screenshot_dir/$file_name"
  else
    printf "%q\n" $file_name
  fi
}

# copy the latest screenshot to the current directory
copy_latest_screenshot() {
  # remove escape chars since we return path as string, and can't have mix. should be either quoted path, or escaped spaces.
  screenshot="$(latest_screenshot | tr -d '\')"
  echo "copying $screenshot"
  cp "$screenshot"  .
}

Python CLI implementation https://github.com/ConorSheehan1/shot
brew install conorsheehan1/conorsheehan1/shot