mysql备份脚本

#######mysql dump###################################################
#!/bin/sh
# mysql_backup.sh: backup mysql databases and keep newest 5 days backup.
# -----------------------------
db_user="root"
db_passwd="root "
db_host="localhost"

# the directory for story your backup file.
backup_dir="/backup"

# date format for backup file (dd-mm-yyyy)
time="$(date +"%d-%m-%Y")"

# mysql, mysqldump and some other bin's path
MYSQL="$(which mysql)"
MYSQLDUMP="$(which mysqldump)"
MKDIR="$(which mkdir)"
RM="$(which rm)"
MV="$(which mv)"
GZIP="$(which gzip)"

#针对不同系统 ，如果环境变量都有。可以去掉

# 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" && $MKDIR "$backup_dir"

# get all databases

for db in cdn cdn_view
do
        $MYSQLDUMP -u $db_user -h $db_host -p$db_passwd $db | $GZIP -9 > "$backup_dir/$time.$db.gz"
done

#delete the oldest backup 30 days ago
find $backup_dir -name "*.gz" -mtime +30 |xargs rm -rf

exit 0;

###################################################################
##########带邮件 通知的mysqldump#####################################
#!/bin/sh
# Name:mysqlFullBackup.sh
# PS:MySQL DataBase Full Backup.
#
# Use mysqldump --help get more detail.
#
scriptsDir=`pwd`
mysqlDir=/usr/local/mysql ?
user=root
userPWD=111111
dataBackupDir=/tmp/mysqlbackup
eMailFile=$dataBackupDir/email.txt
eMail=[e-mail]
logFile=$dataBackupDir/mysqlbackup.log
DATE=`date -I`

echo "" > $eMailFile
echo $(date +"%y-%m-%d %H:%M:%S") >> $eMailFile
cd $dataBackupDir
dumpFile=mysql_$DATE.sql
GZDumpFile=mysql_$DATE.sql.tar.gz

$mysqlDir/bin/mysqldump -u$user -p$userPWD \
--opt --default-character-set=utf8 --extended-insert=false \
--triggers -R --hex-blob --all-databases \
--flush-logs --delete-master-logs \
--delete-master-logs \
-x > $dumpFile

if [[ $? == 0 ]]; then
  tar czf $GZDumpFile $dumpFile >> $eMailFile 2>&1
  echo "BackupFileName:$GZDumpFile" >> $eMailFile
  echo "DataBase Backup Success!" >> $eMailFile
  rm -f $dumpFile

# Delete daily backup files.
  cd $dataBackupDir/daily
  rm -f *

# Delete old backup files(mtime>2).
  $scriptsDir/rmBackup.sh

# Move Backup Files To Backup Server.
  $scriptsDir/rsyncBackup.sh
    if (( !$? )); then
      echo "Move Backup Files To Backup Server Success!" >> $eMailFile
    else
      echo "Move Backup Files To Backup Server Fail!" >> $eMailFile
    fi

else
  echo "DataBase Backup Fail!" >> $emailFile
fi

echo "--------------------------------------------------------" >> $logFile
cat $eMailFile >> $logFile
cat $eMailFile | mail -s "MySQL Backup" $eMail


###################################################################
############### tar ###############################################
#!/bin/bash
#15 3 * * * /usr/local/sbin/backup.sh
#backup directory
BAK_DIR=/data/db_backup

TAR="/bin/tar"
TAR_FLAG="czvf"
#BAKup
if [ ! -d $BAK_DIR ];then
          mkdir -p $BAK_DIR
fi

COMM="$TAR $TAR_FLAG $BAK_DIR/linuxtone-`date +%Y%m%d`.tar.gz linuxtone/"
cd /data/mysql/data
eval $COMM

find $BAK_DIR -name "linuxtone-*.tar.gz" -mtime +30 |xargs rm -rf

###################################################################
###################mysqlhotcopy####################################
#!/bin/sh
DBS=`du /var/lib/mysql/linuxtone/ | awk '{ printf $1 }'`
DFS=`df /myhotco | grep myhotco | awk '{ printf $3}'`
let "DBS = $DBS / 1024"
let "DFS = $DFS / 1024"
# more than 100M free space up
if [ `expr $DBS + 100` -lt $DFS ] ; then
  echo "run mysqlhotcopy ( `expr $DFS - $DBS` ) ..."
  /usr/bin/mysqlhotcopy linuxtone --allowold --flushlog /myhotco
fi