ลีนุกซ์ (Linux) : superuser

#!/bin/sh
# Powered By apples@chek.com>
# case from http://academic.cmri.ac.th
case $USER in
usernamewasblock ) exit 1;;
esac
while [ 1 ]; do
clear
echo
echo
echo "           SSH service at http://www.isinthai.com"
echo "           Any suggestion send mail to webmaster@isinthai.com "
echo
echo "            1 ) Pine - Email/News Client"
echo "            2 ) Lynx - Text Base Web Browser"
echo "            3 ) Pico - Text Editor"
echo "            4 ) File Manager - Delete, Modify, Change file attribute"
echo "            5 ) ncftp - FTP Program"
echo "            6 ) Telnet -  Remote Login"
echo "            7 ) Change password"
echo
echo "            q ) Log out"
echo "                ================= "
echo "                Restrict shell suggest by apples@chek.com"
echo "                Strong server at http://academic.cmri.ac.th"
echo
echo -n " Select->"
read OPT
case $OPT in
  q | Q ) echo;echo "Bye"; echo; echo; exit 1;;
  2 ) lynx http://www.isinthai.com;;
  1 ) pine;;
  3 ) pico;;
  4 ) lynx -editor=pico $HOME;;
  5 ) ncftp;;
  6 ) telnet;;
  7 ) passwd;;
esac
done
exit 1