remove the script in init.d I want to flash TweakDrypT to my rooted android 4.4.2 device. But before, I must delete all the scripts in init.d. I've tried using universal init.d to remove them, but they won't. Anyone can help?
Just use any root file manager like root browser and browse to system/etc/init.d and delete all scripts manually 

Alternatively, download and install terminal emulator. Open it and enter these commands One by One->

su
mount -o rw,remount /system
mkdir /sdcard/init/
cp /system/etc/init.d /sdcard/init/
rm -r /system/etc/init.d/*


In first command, we gain the superuser rights. It should request you for root permission, grant it if it does. The second command is to mount the /system (partition where init.d scripts reside). And third command creates a new folder "init" in root of internal sdcard (this is where we will backup your scripts in case you will ever need them). The fourth command copies all scripts to folder we created in third step (backup). Fifth command finally removes all files inside init.d folder.

Hope this helps.