本文是针对mysql数据库的全量备份,包括数据和结构。保存最新的5次备份。
一:编写脚步文件mysql_backup.sh
#!/bin/sh
# mysql_backup.sh: backup mysql databases and keep newest 5 days backup.
db_user="root"
db_passwd="imsuser"
db_host="localhost"
db_name="ims"
# the directory for story your backup file.
backup_dir="/backup/mysqldata"
# date format for backup file (dd-mm-yyyy)
time="$(date +"%d-%m-%Y")"
# mysql, mysqldump and some other bin's path
MYSQL="/usr/local/mysql/bin/mysql"
MYSQLDUMP="/usr/local/mysql/bin/mysqldump"
MKDIR="/bin/mkdir"
RM="/bin/rm"
MV="/bin/mv"
GZIP="/bin/gzip"
# check the directory for store backup is writeable
test ! -w $backup_dir && echo "Error: $backup_dir is un-writeable." && exit 0
# the directory for story the newest backup
test ! -d "$backup_dir/backup.0/" && $MKDIR "$backup_dir/backup.0/"
# get all databases
#all_db="$($MYSQL -u $db_user -h $db_host -p$db_passwd -Bse 'show databases')"
#for db in $all_db
#do
$MYSQLDUMP -u $db_user -h $db_host -p$db_passwd $db_name $GZIP -9 > "$backup_dir/backup.0/$time.$db_name.gz"
#done
# delete the oldest backup
test -d "$backup_dir/backup.5/" && $RM -rf "$backup_dir/backup.5"
# rotate backup directory
for int in 4 3 2 1 0
do
if(test -d "$backup_dir"/backup."$int")
then
next_int=`expr $int + 1`
$MV "$backup_dir"/backup."$int" "$backup_dir"/backup."$next_int"
fi
done
exit 0;
二:赋予脚步可执行权限
chmod +x mysql_backup.sh
三:添加定时执行计划
vi /etc/crontab
添加:00 5 * * * root /backup/mysql_backup.sh 每日5点钟备份一次数据库
四:补充
linux 开机自动启动
cd /usr/bin
ln -s -f /usr/local/jdk1.7.0_10/bin/java
ln -s -f /usr/local/jdk1.7.0_10/bin/javac
vi /etc/rc.local
/etc/init.d/mysqld start
export JAVA_HOME=/usr/local/jdk1.7.0_10
/usr/local/apache-tomcat-6.0.37/bin/startup.sh start
export JAVA_HOME=/usr/local/jdk1.7.0_10
nohup sh /home/startTransfer.sh &
--转自