mydumper备份脚本(一)

#!/bin/bash
#ocpyang@126.com
########脚本说明
#1.默认读取当前目录下database.txt文件,备份部分数据库
#2.如果database.txt为空,则执行全备或备份指定的个别数据库


#set parameter 
mydumper=/usr/local/bin/mydumper  #根据自己的实际情况设置
dir_backup=/backup  #根据自己的实际情况设置
mysql_host=localhost  #根据自己的实际情况设置
mysql_port=33306  #根据自己的实际情况设置
mysql_user=root  #根据自己的实际情况设置
mysql_pass=123456  #根据自己的实际情况设置

now_date=`date +%Y%m%d%H%M`


if [ ! -d $dir_backup ]; then
  echo -e "\e[1;31m 保存备份的主目录:$dir_backup不存在,将自动新建. \e[0m"
  mkdir -p ${dir_backup}
fi


export black='\033[0m'
export boldblack='\033[1;0m'
export red='\033[31m'
export boldred='\033[1;31m'
export green='\033[32m'
export boldgreen='\033[1;32m'
export yellow='\033[33m'
export boldyellow='\033[1;33m'
export blue='\033[34m'
export boldblue='\033[1;34m'
export magenta='\033[35m'
export boldmagenta='\033[1;35m'
export cyan='\033[36m'
export boldcyan='\033[1;36m'
export white='\033[37m'
export boldwhite='\033[1;37m'


cecho ()

## -- Function to easliy print colored text -- ##
	
	# Color-echo.
	# 参数 $1 = message
	# 参数 $2 = color
{
local default_msg="No message passed."

message=${1:-$default_msg}	# 如果$1没有输入则为默认值default_msg.
color=${2:-black}		# 如果$1没有输入则为默认值black.

case $color in
	black)
		 printf "$black" ;;
	boldblack)
		 printf "$boldblack" ;;
	red)
		 printf "$red" ;;
	boldred)
		 printf "$boldred" ;;
	green)
		 printf "$green" ;;
	boldgreen)
		 printf "$boldgreen" ;;
	yellow)
		 printf "$yellow" ;;
	boldyellow)
		 printf "$boldyellow" ;;
	blue)
		 printf "$blue" ;;
	boldblue)
		 printf "$boldblue" ;;
	magenta)
		 printf "$magenta" ;;
	boldmagenta)
		 printf "$boldmagenta" ;;
	cyan)
		 printf "$cyan" ;;
	boldcyan)
		 printf "$boldcyan" ;;
	white)
		 printf "$white" ;;
	boldwhite)
		 printf "$boldwhite" ;;
esac
  printf "%s\n"  "$message"
  tput sgr0			# tput sgr0即恢复默认值
  printf "$black"

return
}


cechon ()		

	# Color-echo.
	# 参数1 $1 = message
	# 参数2 $2 = color
{
local default_msg="No message passed."
				# Doesn't really need to be a local variable.

message=${1:-$default_msg}	# 如果$1没有输入则为默认值default_msg.
color=${2:-black}		# 如果$1没有输入则为默认值black.

case $color in
	black)
		printf "$black" ;;
	boldblack)
		printf "$boldblack" ;;
	red)
		printf "$red" ;;
	boldred)
		printf "$boldred" ;;
	green)
		printf "$green" ;;
	boldgreen)
		printf "$boldgreen" ;;
	yellow)
		printf "$yellow" ;;
	boldyellow)
		printf "$boldyellow" ;;
	blue)
		printf "$blue" ;;
	boldblue)
		printf "$boldblue" ;;
	magenta)
		printf "$magenta" ;;
	boldmagenta)
		printf "$boldmagenta" ;;
	cyan)
		printf "$cyan" ;;
	boldcyan)
		printf "$boldcyan" ;;
	white)
		printf "$white" ;;
	boldwhite)
		printf "$boldwhite" ;;
esac
  printf "%s"  "$message"
  tput sgr0			# tput sgr0即恢复默认值
  printf "$black"

return
}



judegedate_01="judegedate01.`date +%y%m%d%h%m%s`.txt"
schema_judege01="select schema_name from information_schema.schemata ;"
mysql -h${mysql_host} -P${mysql_port}  -u${mysql_user} -p${mysql_pass} -e"${schema_judege01}" >





${judegedate_01}
echo -e "\e[1;31m The databases name in current instance is: \e[0m"
awk 'NR==2,NR==0 { print $1}'  ${judegedate_01}
echo "							"


#Get the current script path and create a file named database.txt 
#in order to save the  backup  databases name.
filepath=$(cd "$(dirname "$0")"; pwd)
if [ ! -s "${filepath}/data