Get sdcard directory by adb

Question

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

Answer 1

For what its worth - using the $EXTERNAL_STORAGE variable can give you misleading results. I have a HP Slate tablet here, which has the EXTERNAL_STORAGE variable set to /storage/sdcard0 . However when using df (disk free) command on shell, or even the mount command to display free space or mounts, the following becomes obvious:

shell@android:/ $ df
Filesystem             Size   Used   Free   Blksize
/dev                  452.7M  36.0K  452.7M   4096
/mnt/asec             452.7M  0.0 K  452.7M   4096
/mnt/obb              452.7M  0.0 K  452.7M   4096
/system               629.9M  468.5M  161.5M   4096
/data                 5.7 G  2.3 G  3.5 G   4096
/cache                435.9M  16.4M  419.5M   4096
/storage/sdcard0      5.7 G  2.3 G  3.5 G   4096
/mnt/external_sd      29.3G  64.0K  29.3G   32768

so, the external sd card is in fact /mnt/external_sd, instead of the value EXTERNAL_STORAGE returns(which is the internal storage)