hti 发表于 2018-10-8 07:15:21

自动备份mysql数据库脚本

  #!/bin/bash
  #auto backup any one or all db
  #by zhaoyanfeng
  #2017-8-15 11:17:54
  #defined
  ALL_DB=`mysql -uroot -p123456 -e "show databases;"| grep -v Database | xargs -n 1`
  MYSQL_USER=root
  MYSQL_PASSWD="123456"
  MYSQL_BACKUP_DIR=/home/zhaoyanfeng/backup_mysql
  if [ -z $1 ]; then
  echo -e "\033\033[0m"
  echo -e "\033[31mYou can use /bin/bash if_backup_mysql.sh help to get help\033[0m"
  exit 5
  fi
  if [ $# -gt 1 ]; then
  echo -e "\033\033[0m"
  echo -e "\033[31mYou can use /bin/bash if_backup_mysql.sh help to get help\033[0m"
  exit 5
  fi
  if [ $1 == "help" ]; then
  echo -e "\033[32m------------------------------\033[0m"
  echo -e "\033[31mSelect one dbname or all to backup as blow.\033[0m"
  echo $ALL_DB | xargs -n 1
  echo -e "\033[32m------------------------------\033[0m"
  echo all
  echo -e "\033[32m------------------------------\033[0m"
  echo -e "\033\033[0m"
  elif mysql -u$MYSQL_USER -p$MYSQL_PASSWD -e 'show databases;' | grep -v Database | grep $1&>/dev/null; then
  if [ -f $MYSQL_BACKUP_DIR/$1_`date +%F`.sql ]; then
  echo "have exist backup file,so backup old file to RANDOM.bak" && mv $MYSQL_BACKUP_DIR/$1_`date +%F`.sql$MYSQL_BACKUP_DIR/$1_`date +%F`_$RANDOM.sql.bak && mysqldump -u$MYSQL_USER -p$MYSQL_PASSWD $1 > $MYSQL_BACKUP_DIR/$1_`date +%F`.sql && echo -e "\033[33mcongratulations!!!\033[0m"
  elif [ $UID -ne 0 ]; then
  echo "Please use root account to bakcup mysql databases!"
  exit 5
  else
  mysqldump -u$MYSQL_USER -p$MYSQL_PASSWD $1 > $MYSQL_BACKUP_DIR/$1_`date +%F`.sql && echo -e "\033[33mcongratulations!!!\033[0m"
  fi
  elif [ $1 == "all" ]; then
  if [ $UID -ne 0 ]; then
  echo "Please use root account to bakcup mysql databases!"
  exit 5
  elif [ -f $MYSQL_BACKUP_DIR/all_`date +%F`.sql ]; then
  echo "have exist backup file,so backup old file to RANDOM.bak" && mv $MYSQL_BACKUP_DIR/$1_`date +%F`.sql$MYSQL_BACKUP_DIR/$1_`date +%F`_$RANDOM.sql.bak && mysqldump -u$MYSQL_USER -p$MYSQL_PASSWD --all-databases > $MYSQL_BACKUP_DIR/all_`date +%F`.sql && echo -e "\033[33mcongratulations!!!\033[0m"    else
  mysqldump -u$MYSQL_USER -p$MYSQL_PASSWD --all-databases > $MYSQL_BACKUP_DIR/all_`date +%F`.sql && echo -e "\033[33mcongratulations!!!\033[0m"
  fi
  else
  echo "Please check if your input is correct or not."
  fi

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