实战：推断mysql中当前用户的连接数-分组筛选

#connets.sh

#!/bin/sh

#ocpyang@126.com

#依据输入參数u或d来显示出相应的username或数据库名中用户的连接数.

#也能够输入u 详细username或d 详细数据库名做进一步的分组筛选

#set mysql evn

MYSQL_USER=system  #mysql的username

MYSQL_PASS='password'  #mysql的登录用户密码

MYSQL_HOST=192.168.2.188

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.

 # 參数 $1 = message

 # 參数 $2 = color

{

local default_msg="No message passed."

message=${1:-$default_msg} # 假设$1没有输入则为默认值default_msg.

color=${2:-black}  # 假设$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.

 # 參数1 $1 = message

 # 參数2 $2 = color

{

local default_msg="No message passed."

    # Doesn't really need to be a local variable.

message=${1:-$default_msg} # 假设$1没有输入则为默认值default_msg.

color=${2:-black}  # 假设$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

}

if [ "$#" -lt 1 ];then

echo "**********************************"

echo "you must input paraters"

echo "**********************************"

echo "USAGE01: $0 d |$0 d database_name"

echo "eg01: $0 d|$0 d mysql"

echo "USAGE02: $0 u  |$0 u username"

echo "eg02: $0 u  |$0 u wind"

exit 1;

fi

#Case conversion

ipt=`echo $1 |tr '[a-z]' '[A-Z]'`

#source /usr/local/mysql/scripts/mysql_env.ini

logfiledate_init="tmpinit.`date +%Y%m%d%H%M%S`.txt"

logfiledate_midd="tmpmidd.`date +%Y%m%d%H%M%S`.txt"

judegedate_01="judegedate01.`date +%Y%m%d%H%M%S`.txt"

judegedate_02="judegedate02.`date +%Y%m%d%H%M%S`.txt"

mysql -h${MYSQL_HOST} -u${MYSQL_USER} -p${MYSQL_PASS} -e"show processlist;" >${logfiledate_init}

if [ "$#" -eq 1 ]; then

 if [ "$ipt" = 'D' ];then

 awk '{tt[$4]++} BEGIN { printf  "%-20s %-20s\n" ,"dbname","connect";} END{for (i in tt) printf "%-20s %-20s\n" ,i,tt[i]}' ${logfiledate_init}  | grep -v "NULL"

 elif  [ "$ipt" = 'U' ];then

 awk '{tt[$2]++} BEGIN { printf  "%-20s %-20s\n" ,"username","connect";} END{for (i in tt) printf "%-20s %-20s\n" ,i,tt[i]}' ${logfiledate_init}  | grep -v "NULL"

 else

 cechon "输入错误!" red

 echo "                              "

 fi

elif [ "$#" -eq 2 ]; then

 grep -i $2  ${logfiledate_init} > ${logfiledate_midd}

 if [ "$ipt" = 'D'  ];then

 SCHEMA_JUDEGE01="select schema_name from information_schema.schemata where schema_name='$2';"

 mysql -h${MYSQL_HOST} -u${MYSQL_USER} -p${MYSQL_PASS} -e"${SCHEMA_JUDEGE01}" >${judegedate_01}

  if [ ! -s "${judegedate_01}" ];then

   cechon "you input schema_name $2 not exits,pleae check your schema_name" red

   rm -rf ${SCHEMA_JUDEGE01}

   exit 0

  else

  awk '{tt[$4]++} BEGIN { printf  "%-20s %-20s\n" ,"dbname","connect";} END{for (i in tt) printf "%-20s %-20s\n" ,i,tt[i]}' ${logfiledate_midd}  | grep -v "NULL"

  fi

 elif  [ "$ipt" = 'U' ];then

 SCHEMA_JUDEGE02="select user from mysql.user where user='$2';"

 mysql -h${MYSQL_HOST} -u${MYSQL_USER} -p${MYSQL_PASS} -e"${SCHEMA_JUDEGE02}" >${judegedate_02}

  if [ ! -s "${judegedate_02}" ];then

  cechon "you input username $2 not exits,pleae check your user_name" red

  rm -rf ${SCHEMA_JUDEGE02}

  exit 0

  else

  awk '{tt[$2]++} BEGIN { printf  "%-20s %-20s\n" ,"username","connect";} END{for (i in tt) printf "%-20s %-20s\n" ,i,tt[i]}' ${logfiledate_midd}  | grep -v "NULL"

  fi

 else

 cechon  "输入错误!" red

 echo "                              "

 fi

fi

#清除暂时文件

rm -rf ${logfiledate_init}

rm -rf ${logfiledate_midd}

rm -rf ${judegedate_01}

rm -rf ${judegedate_02}