n 创建新分区
d 删除分区
w 保存并退出
fdisk分区后，操作只是在内存中并未真正的对硬盘分区，如果真的需要分区w保存即可
q 不保存并退出
当然如果你后悔了，输入q则不会保存之前的操作
选项介绍完，我来给大家做一个实验。让大家了解一下这款工具的使用方式。
[root@TianRandai ~]#fdisk /dev/sdb #对/dev/sdb进行操作
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): n #建立一个分区
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p #分区类型为主分区,p是主分区,e是扩展分区
Partition number (1-4, default 1): 1 #指定分区号
First sector (2048-41943039, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039): +2G
Partition 1 of type Linux and of size 2 GiB is set
Command (m for help): t #指定分区标记类型
Selected partition 1
Hex code (type L to list all codes): 82
Changed type of partition 'Linux' to 'Linux swap / Solaris'
Command (m for help): w #保存操作
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
强大的分区工具parted
parted
parted工具的分区是即时操作的，所以分区的时候要小心慎用，因为可能一个不小心就把再用的硬盘给分区了，所以使用时，一定要谨慎谨慎再谨慎。
用法：parted [选项]... [设备[命令[参数]...]...]
parted /dev/sdb mklabel gpt|msdos 为磁盘指定模式
parted /dev/sdb print 显示磁盘信息
parted /dev/sdb mkpart primary/extended/logical 0 200 （默认M）创建分区类型及大小
parted /dev/sdb rm 1 删除分区
parted -l 显示所有磁盘的信息
选项介绍完，我来给大家做一个实验。让大家了解一下这款工具的使用方式。
[root@TianRandai ~]#parted /dev/sdb mklabel gpt #指定磁盘模式为GPT
Warning: The existing disk label on /dev/sdb will be destroyed and all data on this disk
will be lost. Do you want to continue?
Yes/No? yes
Information: You may need to update /etc/fstab.
[root@TianRandai ~]#parted /dev/sdb mkpart primary 0 2G #创建分区，分区类型为主分区，大小为2G
Warning: The resulting partition is not properly aligned for best performance.
Ignore/Cancel? i
Information: You may need to update /etc/fstab.
[root@TianRandai ~]#parted /dev/sdb print #查看磁盘信息
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sdb: 21.5GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 17.4kB 2000MB 2000MB primary
[root@TianRandai ~]#parted /dev/sdb rm 1 #删除分区1
Information: You may need to update /etc/fstab.
[root@TianRandai ~]#parted /dev/sdb print #再次查看磁盘信息
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sdb: 21.5GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
