Wikipedia
Cfdisk
cfdisk is a Linux partition editor, similar to fdisk, but with a different user interface ( curses). It is part of the util-linux package of Linux utility programs.
Originally written in 1992, the current version is 2.12r.
If invoked without arguments, cfdisk attempts to read the current partition table from the disk drive and present its findings.
One advantage of cfdisk (over fdisk for example) is that it's possible to enlarge an Extended Partition when there's free space after the partition. This is not directly possible with fdisk and some other partitioning software.
Below is a screen capture from the most recent version of cfdisk immediately after start-up.
cfdisk 2.12r Disk Drive: /dev/sda Size: 81964302336 bytes, 81.9 GB Heads: 255 Sectors per Track: 63 Cylinders: 9964 Name Flags Part Type FS Type [Label] Size (MB) - sda2 Boot Primary Linux ext3 106.93 Primary Linux swap / Solaris 2006.97 sda3 Primary Linux ext3 79842.80 [Bootable] [ Delete ] [ Help ] [Maximize] [ Print ] [ Quit ] [ Type ] [ Units ] [ Write ] Toggle bootable flag of the current partition