sorry . i wrote df -k


and here is the output

/home/user # df -k
Filesystem 1k-blocks Used Available Use% Mounted on
rootfs 233344 152984 76080 67% /
ubi0:rootfs 233344 152984 76080 67% /
tmpfs 1024 60 964 6% /tmp
tmpfs 256 72 184 28% /var/run
none 10240 72 10168 1% /dev
tmpfs 65536 4 65532 0% /dev/shm
/dev/mmcblk0p2 2064208 213008 1746344 11% /home
/home/user #