Mysql数据库mys和ora库的备份与恢复脚本

!/bin/bash

Time=$(date +%Y%md%H%M%S)

Back_dir="$HOME/mysqlback/${Time}"

function Detect_u_p {

read -p "输入数据库用户名和密码,用空格分隔:" user passwd

mysql -u${user} -p{passwd} -e "show databases" &>/dev/null

[ $? -eq 0 ] && return 0 || return 1

}

function backup {

Detect_u_p

if [ $? -eq 0 ];then

Back_db=($(mysql -u${user} -p{passwd} -e "show databases" 2>/dev/null | awk '/^mys|ora/ {print $1}'))

[ ! -d ${Back_dir} ] && mkdir -p ${Back_dir}

echo "${Time}开始备份"

for back_db in ${Back_db[*]}

do

mysqldump -u${user} -p{passwd} --opt -R ${back_db} > ${Back_dir}/${back_db}.sql &>/dev/null

echo "${back_db}备份完成"

done

mysqldump -u${user} -p{passwd} --opt -R --all-databases --routines > ${Back_dir}/alldb_back.sql &>/dev/null && echo "整库备份完成"

else

echo "用户名或密码输入错误"

fi

}

function imp_db {

Del_db=($(mysql -u${user} -p{passwd} -e "show databases" 2>/dev/null | awk '/^mys|ora/ {print $1}'))

for del_db in ${Del_db[*]}

do

mysql -u${user} -p{passwd} -e "DROP DATABASE ${del_db}" &>/dev/null

done

Rec_db=($(ls -l $1 | egrep -v "总用量|alldb" | awk '{print $9}' | awk -F"." '{print $1}'))

for rec_db in ${Rec_db[*]}

do

mysql -u${user} -p{passwd} -e "CREAT DATABASE ${rec_db}" &>/dev/null && mysql -u${user} -p{passwd} ${rec_db} < $1/{rec_db}.sql &>/dev/null && echo "恢复${rec_db}成功"

done

}

function recover {

Rec_dir=$(find $HOME -type d -name mysqlback)

if [ ! -d ${Rec_dir} ];then

echo "未找到脚本备份的目录"

else

ls -lt {Rec_dir} | egrep -v "总用量" | awk -v Dir="${Rec_dir}" 'BEGIN {print "备份路径为:"} $9 ~ /[0-9]+/ {print NR"."Dir"/"$9}'

Dir_arr=($(ls -lt {Rec_dir} | awk -v Dir="${Rec_dir}" '$9 ~ /[0-9]+/ {print Dir"/"$9}'))

read -p "选择目录为${Dir_arr[0]}中的文件来恢复数据库?(y or n):" yn

if [ "$yn" = "y" -o "$yn" = "Y" -o "$yn" = "yes" ];then

Detect_u_p

[ $? -eq 0 ] && imp_db ${Dir_arr[0]} || echo "用户名或密码输入错误"

else

read -p "用其他备份目录来恢复数据库,请输入对应序号:" digit

if [ ${digit} -gt 0 -a ${digit} -le ${#Dir_arr[*]} ];then

digit=$((${digit}-1))

imp_db ${Dir_arr[${digit}]}

else

echo "输入错误"

fi

fi

fi

}

while [ 1 ]

do

echo -e "1.备份数据库!\n2.恢复数据库!"

read -p "请输入要实现功能的序号:" choice

echo "********************************************************"

case ${choice} in

1) backup;;

2) recover;;

) echo "Byebye!"

exit 1

esac

echo "*******************************************************"

read -p "Continue?(y or n):" yn

[ "$yn" = "y" -o "$yn" = "Y" ] && continue || break

done