非常简单的shell备份脚本

所要备份的库，以参数的形式传递进去，删除30天以前的备份文件

备份目录若不存在就创建之，/back/mysql/

#!/bin/bash

DATABASE=$1

USERNAME="root"

PASSWD="redhat"

BACKUPDIR="/backup/mysql"

CURDATE=`date +%F`

lOG="/var/log/mysqlbackup.log"

[ $? -eq 1 ] || {

      echo "Usage: $0 DATE"

      exit 99

}

[ -d $BACKUPDIR ] || mkdir -p $BACKUPDIR

 mysqldump -u $USERNAME -p$PASSWD $DATEBASE >$BACKUPDIR/backup-$CURDATE.sql

[ $? -gt 0 ] && {

      echo -e "$CURDATE--mysql:backup $DATABASE error\n" >> $LOG

     exit 99

}

find $BACKUPDIR/ -ctime +30 -exec rm -rf {} \;

[ $? -gt 0 ]$${

     echo -e "CURDATE--mysql:delete 30 days ago backup files[error]\n" >>$LOG

}