寫一個腳本（前提：請為虛擬機新增一塊硬盤，假設它為/dev/sdb）,為指定的硬盤創建分區

1，列出當前系統上所有的磁盤，讓用戶選擇，如果選擇quit則退出腳本；如果用戶選擇錯誤，就讓用戶重新選擇

2，檔用戶選擇后，提醒用戶確認接下來的操作可能會損壞數據，并請用戶確認：如果用戶選擇y就繼續，n就退出；否則，讓用戶重新選擇；

3，抹除那塊硬盤上的所有分區(提示，抹除所有分區后執行sync命令，并讓腳本睡眠3秒后在分區)，并為其創建三個主分區，第一個為20M，第二個為512M，第三個為128M，切第三個為swap分區類型；(提示：將分區命令通過echo傳給fdisk即可實現)

#!/bin/bash # echo "Initial a disk..." echo -e "\033[31mWarning:\033[0m" fdisk -l 2> /dev/null | grep -o "^Disk /dev/[sh]d[a-z]"read -p "Your Choose:" PARTDISK if [ $PARTDISK == 'quit' ];then echo "quit" exit 7; fi until fdisk -l 2> /dev/null | grep -o "Disk /dev/[sh]d[a-z]" | grep "^Disk $PARTDISK$" &> /dev/null;do read -p "Wrong option,Your choice aging:" PARTDISK done read -p "will destroy all data,continue:" CHOICE until [ $CHOICE == 'y' -o $CHOICE == 'n' ];do read -p "Will destroy all data,continue:" CHOICE done if [ $CHOICE == 'n' ];then echo "QUIT" exit 9; else dd if=/dev/zero of=$PARTDISK bs=512 count=1 &> /dev/null sync sleep 3 echo 'n p+20M n p+512M n pn p+128M t 82 w' | fdisk $PARTDISK &> /dev/null partprobe $PARTDISK sync sleep 2 mke2fs -j ${PARTDISK}1 &> /dev/null mke2fs -j ${PARTDISK}2 &> /dev/null mkswap ${PARTDISK}3 &> /dev/null fi

執行過程：

[root@localhost ~]# ./partdisk.sh Initial a disk... Warning: Disk /dev/sda Disk /dev/sdb Disk /dev/sdc Disk /dev/sdd Your Choose:/dev/sdb will destroy all data,continue:y 1+0 records in 1+0 records out bytes (512 B) copied, 0.0304787 s, 16.8 kB/s [root@localhost ~]# fdisk -lDisk /dev/sda: 21.5 GB, 21474836480 bytes heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00051800Device Boot Start End Blocks Id System /dev/sda1 * 1 39 307200 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 39 549 4096000 82 Linux swap / Solaris Partition 2 does not end on cylinder boundary. /dev/sda3 549 2611 16567296 83 LinuxDisk /dev/sdb: 21.5 GB, 21474836480 bytes heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x18756792Device Boot Start End Blocks Id System /dev/sdb1 1 4 32098+ 83 Linux /dev/sdb2 5 70 530145 83 Linux /dev/sdb3 71 87 136552+ 82 Linux swap / SolarisDisk /dev/sdc: 21.5 GB, 21474836480 bytes heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000Disk /dev/sdd: 21.5 GB, 21474836480 bytes heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000[root@localhost ~]# mount /dev/sdb1 /mnt [root@localhost ~]# ls /mnt lost+found [root@localhost ~]# vi partdisk.sh [root@localhost ~]# umount /mnt

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