fdisk

bhavin@Bhavin-PC:~$ sudo fdisk -l /dev/sda

Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x000daf68

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048  1456936959   728467456   83  Linux
/dev/sda2      1456939006  1465147391     4104193    5  Extended
Partition 2 does not start on physical sector boundary.
/dev/sda5      1456939008  1465147391     4104192   82  Linux swap / Solaris
bhavin@Bhavin-PC:~$