数据库自动备份并打成tar.gz包

#!/bin/sh

# database info
db_user="user"
db_pass="pass"
db_host="127.0.0.1"
db_name="dbname"

# others vars
bin_dir="/usr/bin"            #the mysql bin path
backup_dir="/data/backup"    #the backup file directory
date=`date +%F`

file_name=$db_name"_"$date

# todo
$bin_dir/mysqldump --opt -u$db_user -p$db_pass -h$db_host  $db_name > $backup_dir/$file_name".sql"
cd $backup_dir
tar cvzfP  $file_name".tar.gz"  $file_name".sql"
mv  $file_name".tar.gz"  $db_name
rm -f  $backup_dir/$file_name".sql"