do a screenshot using scrot and upload it to imgur.com. Of course, the image link will be in clipboard.

screenshot.sh

#!/bin/bash

# filename   : screenshot.sh
# created at : 2013-04-05 20:01:35
# author     : Jianing Yang <jianingy.yang AT gmail DOT com>

# client id from imgur.com
client=0350033e1d023ba
# temporary file for storing screenshot
img=$(mktemp --suffix .png)
trap "rm $img" EXIT

# shot. use import from imagemagick as scrot has some keybinding problem
import $img || exit 1

# upload
link=$(curl -s -X POST -H "Authorization: Client-ID $client" -F "image=@$img" https://api.imgur.com/3/upload.xml | grep -oE '<link>([^<]+)</link>' | sed 's#</\?link>##g')

[ -z "$link" ] && echo 'upload failed!' && exit

# save link in clipboard 
(echo $link | xclip -in) || exit 1

notify-send "screenshot saved at $link"