Change dns permanent with terminal emulator

Hi i want to change my dns permanent with terminal emulator

Android 4.2.2 general mobile e-tab 4

Terminal command help

Hi
I debricked my verizon samsung s3 i535 using your posts using sd card it worked..however i am stuck on the terminal commands as my os version is 4.4.2 kitkat..Please provide the commands i need for terminal with reference to 4.4.2. as your posts have command for 4.3..and i cant boot without the sd card.

Kindly assist
Thanks.

Question about an android terminal command.

Hello I am here (sorry if this is the wrong place for this type of question) hoping if any of you guys have heard of a android terminal emulator command that slows ui, or the device in general. I am trying to crack an app called nvidia shield hub it has some tabs that disappear less than a second after opening app for the first time. (remnence of nvidia hiding the stream service and grid games *which DOES WORK with non tegra devices.*) yes i tryed it and got to the hidden tabs on 2 devices my nexus 7 2013 and Samsung tab 3 7.0. I had a friend show me one that slowed ui by generating something to keep the GPU or CPU busy. but I lost contact with them.
Any ideas or info will help ty.

Sorry for my bad English and grammar English is my second language.

Terminal

Can i use Terminal Emulator to do this step : su
dd if=/sdcard/twrp.img of=/dev/block/by-name/recovery
reboot recovery. Im rooted and unlocked BL

Looking for a BLE terminal app

Hello!

First of all, I'll apologise if this doesn't go here. It's not that I'm developing an Android app, but that I'm developing a hardware and need an app that covers my needs...

I'll explain. I'm building a device that integrates an accelerometer, and a Bluetooth BLE module. With this, I want to be able to read the accelerometer values from the Bluetooth connection in real-time, and store them somewhere.
Right now, with apps like "BLE Scanner" and "BLE-Tracker" I can read the values, but those apps don't have a data logging/storing function, so I can't save them nor export them to Excel for graphing and such.

My search of "Bluetooth BLE" here didn't show much results, none of them had what I need. Do you know of an app that does this? (Bluetooth BLE serial terminal with logging functionality)

Thanks.