Adding and deleting partition fdisk command

To add or delete partition in linux we use fdisk command
To delete partition: 'fdisk /dev/hda(or sda)' , then give 'd' to delete partition
To add partition:'fdisk /dev/hda(or sda)' , then give 'n' and give 't' and give hexa-decimal digit of filesystem(83 for linux)and given the size you want , finally give 'w'--- this will add partition.