USER=root # Database username
PASSWORD=cucrzmysql # Database user password
#DATABASE=idssr # Database name
for DATABASE in `ls /mysql/data/mysql/ | grep idss` # Database name
do
#WEBMASTER=849699940@qq.com # Administrator email address to send backup failure message reminder
BACKUP_DIR=/mysql_bak # Backup file storage path
LOGFILE=/mysql_bak/data_backup.log # Journal file path
DATE=`date '+%Y%m%d-%H%M'` # Date format (as file name)
DUMPFILE=$DATABASE-$DATE.sql # Backup file name
ARCHIVE=$DATABASE-$DATE.sql.tgz # Compressed file name
DATE_5=`date -d "-5 day" +%Y%m%d`

# Determines if the backup file storage directory exists, otherwise it is created
if [ ! -d $BACKUP_DIR ];then
mkdir -p "$BACKUP_DIR"
fi

# Before starting the backup, write the backup header to a journal file
echo " ">> $LOGFILE
echo "----------------------">> $LOGFILE
echo "BACKUP DATE:" $(date +"%Y-%m-%d %H:%M:%S") >> $LOGFILE
echo "----------------------">> $LOGFILE

# Switch to the backup directory
cd $BACKUP_DIR
# delete 5 Days before the backup file
rm -rf $DATABASE-$DATE_5*
# use mysqldump  Command to backup the setup database and name the backup file after the formatted timestamp
mysqldump --opt $DATABASE -uroot -pcucrzmysql > /$BACKUP_DIR/$DUMPFILE
# Determine if the database backup was successful
if [[ $? == 0 ]]; then
# Create a zip file for the backup
tar czvf $ARCHIVE $DUMPFILE >> $LOGFILE 2>&1
# Enter the successful backup message into the diary file
echo "[$ARCHIVE] Backup Successful!" >> $LOGFILE
# Delete the original backup file, just protect it   Leave the database backup files can be compressed package
rm -f $DUMPFILE
else
echo "Database Backup Fail!" >> $LOGFILE

# Send an email reminder to the site administrator after the backup failed, as needed mailutils Or similar support for sending mail tools under the terminal
#mail -s  " Database:$DATABASE Daily Backup Fail "  $WEBMASTER
fi
# Output a reminder that the backup process is over
echo "Backup Process Done"
done