#!/bin/bash
PATH="/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin"

DIR="/DATA/Backup/MySQL"

if [ -z $1 ]; then
 echo "database name missing! use --all for all db's"
 exit 1;
elif [ $1 = '--all' ]; then
 echo "full backup"
 for i in `mysqlshow --defaults-file=/root/.my.cnf | awk '{print $2}' | grep -v Databases`; do
  if [ "$i" != "information_schema" ] && [ "$i" != "performance_schema" ]; then
   if test -f ${DIR}/${i}.sql; then
    echo "Move ${DIR}/${i}.sql to ${DIR}/${i}.sql.1"
    mv ${DIR}/${i}.sql ${DIR}/${i}.sql.1
   fi
   echo "dump ${i} to ${DIR}/${i}.sgl"
   mysqldump --defaults-file=/root/.my.cnf --single-transaction --events --opt -QF -r${DIR}/${i}.sql $i
   chmod 600 ${DIR}/${i}.sql
  fi
 done;
elif [ -n $1 ]; then
 echo "Starting backup of $1"
 if test -f $DIR/$1.sql; then
  echo "Move $DIR/$1.sql to $DIR/$1.sql.1"
  mv ${DIR}/${1}.sql ${DIR}/${1}.sql.1
 fi
 mysqldump --defaults-file=/root/.my.cnf --single-transaction --opt -QF -r${DIR}/${1}.sql $1
 chmod 600 ${DIR}/${1}.sql
fi
echo "Done"
exit 0;