echo "unit: sectors
> /dev/mmcblk0p1 : start= 64, size= 51199936, Id=c
> /dev/mmcblk0p2 : start= 56631360, size= 4194304, Id=83
> /dev/mmcblk0p3 : start= 60825664, size= 1572864, Id=82
> /dev/mmcblk0p4 : start= 51200000, size= 5431360, Id= 5" > table

sfdisk --no-reread /dev/mmcblk0 < table

plz expain the steps

after the above said

how should i apply to the file system to the MyDocs partition and add the fifth partition inside the extended fourth partition