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Keytool is not recognized as internal or extenal command / Adding PATH in system variable

If you are running a keytool command 
keytool -list -v -keystore C:\Users\arun\.android\debug.keystore -alias androiddebugkey -storepass android 
 and getting an error 
'keytool' is not recognized as an internal or external command 

 If you are using any other commad like java,javac , etc.. and getting an error " is not recognized as an internal or external command" 
you can also use this same steps 
you are getting this error because keytool.exe , executable file which exists in the bin directory of your JDK  is not added to Path in your Environmental variables. To resolve this issue

 1.first we need to find the bin Directory of our jdk 
  Usually this will be in C:\Program Files\Java\jre1.8.0_221\bin
(jre1.8.0_221 - change this to your latest version , ). you can see keytool.exe file in the bin directory . (If you installed jdk in a different directory Find your Jdk installation folder and  use that path.)

 2. we need to add this bin directory to PATH in Environment variables 
3. Go to Advanced system settings .
      I. If you are using windows 10, search for  advanced system settings in search bar

      II.or go to control panel->system And Security

    III.click on system and click advanced system settings in left side

4. Click on environment variables In Advanced  system settings 
5. Select path and click Edit in Environment variables    
6. click New and add your jdk bin path
7.click ok .now you are ready to to go 
8. open your command prompt and run the command            

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