$ adb shell df
Filesystem             Size   Used   Free   Blksize
/dev                   192M    32K   192M   4096
/mnt/asec              192M     0K   192M   4096
/mnt/obb               192M     0K   192M   4096
/system                145M   124M    20M   4096
/data                  196M   167M    29M   4096
/cache                  95M    32M    62M   4096
/mnt/sdcard              3G   177M     3G   32768