How to get dumpstate logs in samsung galaxy grand? While working on my app, I have faced app crash. But I can't get any dumpstate log from data/log folder. So what is the solution to get dumpstate. Or I have to create any folder on my app name in data folder? 

Advance thanks for your help..
You don't need an adb shell to get dumpstate logs in this case. 

Every Samsung device has a built-in tools like SysDump, just follow these steps:

1) Open the Phone app in your device and type: *#9900#

2) Depending on how much detailed logs you would like to get change Debug Level and Silent log options (by default Debug Level is Disabled/LOW and Silent Log is turned Off) 

3) Click on Run dumpstate/logcat/modem log (should be first option) wait until process finishes 

4) Click Copy to sdcard(include CP Ramdump). This is important step because by default collected logs will be stored in /data/log directory, which is under root permissions so you can't access to it without root permissions

5) Your logs will be stored in /log directory on your DEVICE STORAGE.(this means that you don't need root access to find it just use file manager).