Calculation real size from results of 'df' and 'stat'

"df" show result based on KB unit.

"stat" using block unit that it can be get from "stat"'s result.

# df -h /efs

Filesystem            Size  Used Avail Use% Mounted on

/dev/block/mmcblk0p16  12M  712K   11M   6% /efs

# df /efs

Filesystem            1K-blocks Used Available Use% Mounted on

/dev/block/mmcblk0p16     12016  712     11304   6% /efs

1K-blocks : total block count

12016(KB)/1024 = 11.734

712(KB)

# stat -f /efs

  File: "/efs"

    ID: d3609fe804970d6b Namelen: 255    Type: ef53

Block Size: 4096    Fundamental block size: 4096

Blocks: Total: 3004     Free: 2826      Available: 2826

Inodes: Total: 1024     Free: 865

3004(block)*4096/1024/1024 = 11.734 (MB)

2826(block)*4096/1024/1024 = 11.039 (MB)

# stat /efs

  File: `/efs'

  Size: 4096     Blocks: 8       IO Blocks: 4096        directory

Device: b310h/45840d     Inode: 2        Links: 30

Access: (771/drwxrwx--x)        Uid: (1001/   radio)    Gid: (1000/  system)

Access: 1970-01-01 09:00:00.000000000

Modify: 2017-02-23 16:21:52.854108236

Change: 2010-01-14 09:44:10.559999995

additinal keywords : 단위, 사이즈, 크기, 용량, capacity