解决方案: adb shell echo $EXTERNAL_STORAGE 
| I am making an application, which pulls files(Saved by android app) from the device sdcard by adb. The problem is that different devices, have various sdcard directories i.e: 
 Firstly I invented following solution: 
 But the problem is that I have two samsung devices  
 
 
 EDIT: Found the solution:  | 
原文连接:http://stackoverflow.com/questions/9374628/get-sdcard-directory-by-adb