ss.sh

#!/bin/bash

case "$1" in
  "root" ) 
    import -quality 100 -window root ~/Pictures/`date +%Y%m%d_%H:%m:%S-$$.jpg`
  ;;

  "window" ) 
    xwininfo |grep '^xwininfo: Window id:' | awk '{print $4}' | xargs -I{} import -quality 100 -window {} ~/Pictures/`date +%Y%m%d_%H:%m:%S-$$.jpg`
  ;;

  "area" ) 
    import -quality 100 ~/Pictures/`date +%Y%m%d_%H:%m:%S-$$.jpg`
  ;;
esac