$ df
Filesystem     1K-blocks      Used     Available    Use%   Mounted on
/dev/sda1     40,720,960   5,282,552   35,422,024   13%    /

38 Gb

$ df -i
Filesystem      Inodes      IUsed       IFree   IUse%   Mounted on
/dev/sda1      4,807,680   196,498   4,611,182    5%    /