Linux系统中自动备份MySQL数据库的Shell脚本

#!/bin/bash
mysql_pwd="password"
mysql_dump="/usr/local/mysql/bin/mysqldump"
cur_year=$(date +"%Y")
cur_month=$(date +"%m")
cur_day=$(date +"%d")
dump_path="/usr/backup/mysql/$cur_year-$cur_month/$cur_day"
arr_tables=(
"table_1"
"table_2"
"table_3"
)
if [ ! -d "$dump_path" ]; then
mkdir -p "$dump_path"
fi
for cur_table in ${arr_tables[*]}; do
$mysql_dump -uroot -p$mysql_pwd --opt mydb $cur_table | gzip > $dump_path/$cur_table.sql.gz
done