This Bash Binary Is A Statically Linked Binary For ARM With Networking Flags Enabled

This means you can push this to your device and it works standalone with the ability to use /dev/tcp and /dev/udp

Instructions:
cd ~
git clone https://github.com/SuperDethByte/Bash-for-ARM.git
cd Bash-for-ARM

Plug your phone into your computer.
Im guessing you already know how to get adb going.

adb push bash /system/bin/