$ ./adb  -d shell
$ df
/dev: 49564K total, 0K used, 49564K available (block size 4096)
/sqlite_stmt_journals: 4096K total, 0K used, 4096K available (block size 4096)
/system: 69120K total, 63192K used, 5928K available (block size 4096)
/data: 76544K total, 53512K used, 23032K available (block size 4096)
/cache: 69120K total, 2636K used, 66484K available (block size 4096)