the command, if you want to try it (may not work in all environments):

convert http://i.kym-cdn.com/photos/images/newsfeed/002/285/551/bc0.jpg -size 250x -pointsize 30 caption:'use a traditional image editor.' -geometry +50+470 -composite -size 280x -pointsize 14 caption:"$BASH_COMMAND" -geometry +360+530 -composite meme.jpg