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I don't know if you have any understanding of articles like MySQL how to successfully start scripts before, but today I'm here to give you a brief talk. If you are interested, let's take a look at the body part. I believe you will definitely gain something after reading how MySQL successfully starts the script.

#bin/bash

#author merci

function mysql_start(){

id=`ps -ef | grep 'mysql' | grep -v 'grep'`

if [ ! -n "$id" ]

then

/usr/local/mysql/bin/mysqld_safe --defaults-file=/etc/my.cnf --user=root &

exit 0

else

echo -e "mysql already running ! "

fi

}

function mysql_stop(){

id=`ps -ef | grep 'mysql' | grep -v 'grep'` | awk '{print $2}'

if [ ! -n "$id" ]

then

echo -e "mysql already stopping ! "

else

for pid in $id

do

kill -9 $pid

echo -e "close process pid :$pid"

done

fi

}

echo -e "1. start mysql service"

echo -e "2. stop mysql service"

read -p "please choose id:" x

case $x in

1)

mysql_start

;;

2)

mysql_stop

;;

*)

echo "please input id !!! "

;;

esac

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