TTY Bash Script

#!/bin/bash
#Coded By Bayz21 - Security Ghost
#Noob Coder , recode = boleh , hapus copyright = mandul >:(

 echo "-=Simple TTY Command by Bayz21=-"
choice=13
  echo "1. tty python sh"
 echo "2. tty python bash"
 echo "3. tty echo os.system sh"
 echo "4. tty echo os.system bash "
 echo "5. tty /bin/sh -i"
 echo "6. tty /bin/bash -i"
 echo "7. tty perl sh"
 echo "8. tty perl bash"
 echo "9. tty ruby sh"
 echo "10. tty ruby bash"
 echo "11. tty lua: os.execute sh"
 echo "12. tty lua: os.execute bash"
 echo -n "Pilih metode tty yg lu mau => "

while [ $choice -eq 13 ]; do

read choice

if [ $choice -eq 1 ] ; then

        echo `python -c ‘import pty; pty.spawn(“/bin/sh”)’`

else

        if [ $choice -eq 2 ] ; then
                 echo `python -c ‘import pty; pty.spawn(“/bin/bash”)’`
        else

                if [ $choice -eq 3 ] ; then
                        echo `echo os.system(‘/bin/sh’)`
                else

                    if [ $choice -eq 4 ] ; then
                        echo `echo os.system(‘/bin/bash’)`
                        else
                            if [ $choice -eq 5 ] ; then
                        echo `/bin/sh -i`
                        else
                            if [ $choice -eq 6 ] ; then
                        echo `/bin/bash -i`
                        else
                            if [ $choice -eq 7 ] ; then
                        echo `perl: exec “/bin/sh”;`
                        else
                        if [ $choice -eq 8 ] ; then
                        echo `perl: exec “/bin/bash”;`
                        else
                        if [ $choice -eq 9 ] ; then
                        echo `ruby: exec “/bin/sh”`
                        else
                        if [ $choice -eq 10 ] ; then
                        echo `ruby: exec “/bin/bash”`
                        else
                        if [ $choice -eq 11 ] ; then
                        echo `lua: os.execute(‘/bin/sh’)`
                        else
                        if [ $choice -eq 12 ] ; then
                        echo `lua: os.execute(‘/bin/bash’)`
                        else

 echo "1. tty python sh"
 echo "2. tty python bash"
 echo "3. tty echo os.system sh"
 echo "4. tty echo os.system bash "
 echo "5. tty /bin/sh -i"
 echo "6. tty /bin/bash -i"
 echo "7. tty perl sh"
 echo "8. tty perl bash"
 echo "9. tty ruby sh"
 echo "10. tty ruby bash"
 echo "11. tty lua: os.execute sh"
 echo "12. tty lua: os.execute bash"
 choice=13
 echo "Powered By Bayz21"
 echo -n "Ngetiknya yg bener tod >:( , pilih metode tty yg lu mau => "

                fi
        fi
fi
fi
fi
fi
fi
fi
fi
fi
fi
fi
done