脚本实现重新对一个磁盘分区格式化

主要分为三步
1. 删除原有分区
2. 使用fdisk进行分区
3. 创建文件系统

#!/bin/bash#disks=$(fdisk -l 2>/dev/null |grep '^Disk /dev/[sh]d[a-z]'  |awk -F: '{print $1}' |cut -d' ' -f2 |awk -F '/' '{print $3}' |tr '\n' ' ')repartition(){    echo "Disk: $disks"    read -p "Input which disk you want re-partition: " disk    echo -e "Step 1: delete all partion of $disk "    read -p "[y/n]" x    if [ $x = 'y' ]; then        dd if=/dev/zero of=/dev/$disk bs=512 count=1        echo "partition of $disk delete complete."    else        exit 0    fi    echo "Step 2: re-partition $disk"    echo 'np1+20Mnp2+512Mnp3+128Mt382w' | fdisk /dev/$disk &>/dev/null    sleep 3    sync    # create filesystem    echo "Step 3: create filesystem"    mkfs.ext4 /dev/${disk}1 &>/dev/null    mkfs.ext4 /dev/${disk}2 &>/dev/null    mkswap /dev/${disk}3 &>/dev/null    sleep 3}while true; do    read -p "Input your choice: [q]-->quit, [n]-->re-partition: " choice    if [ $choice = 'q' ]; then        exit 0    elif [ $choice = 'n' ]; then        read -p "Warning: the operation may destroy your data    Are you sure continue [y/n]" confirm        if [ $confirm = 'y' ]; then            repartition        else            exit 0        fi    else        echo "Your input is invalid, plz input again!"    fidone