Method to check whether mysql started successfully of bat+bash

Many friends prefer windows below can refer to the code below

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@echo off 
for /f "usebackq" %%i in (`"tasklist|find /c "mysqld.exe""`) do ( 
set chkstat=%%i 
) 
if %chkstat% == 0 ( 
net start mysql
echo ================ >> %date:~0,10%.log 
echo %date% %time% check mysql service stop >> %date:~0,10%.log 
echo restart mysql service! >> %date:~0,10%.log 
echo ================ >> %date:~0,10%.log 
) 

The second method:

@echo off
for /f "skip=3 tokens=4" %%i in ('sc query mysql') do set "zt=%%i" &goto :next

:next
if /i "%zt%"=="RUNNING" (
echo  The service has been found to be running and is being shut down 
net stop mysql
) else (
echo  The service now handles the stopped state and is starting the service now 
net start mysql
)
exit
pause

linux system through shell command to achieve

Check if MySQL is down and start if it is

If your MySQL is down a lot, you can use this script to automatically start up after an outage, and add it to crontab for implementation.
Details please see http: / / www codeproject. com/Articles / 988967 / Mysql - Uptime Check -- Script

#!/bin/bash
 
result=`/usr/bin/mysqladmin ping`
expected='mysqld is alive'
 
if [[ "$result" != "$expected" ]]
then
echo "It's dead - restart mysql"
 
# email subject
SUBJECT="[MYSQL ERROR] - Attempting to restart service"
 
# Email To ?
EMAIL="info@endyourif.com"
 
# Email text/message
EMAILMESSAGE="/tmp/emailmessage.txt"
echo "$result was received"> $EMAILMESSAGE
echo "when we were expected $expected" >>$EMAILMESSAGE
# send an email using /bin/mail
mail -s "$SUBJECT" "$EMAIL" < $EMAILMESSAGE
 
sudo /etc/init.d/mysql restart
fi

Method 2.

#!/bin/bash
#mysql check
PORT="0"
PORT=`netstat -lnt | grep 3306 | wc -l `
echo $PORT
if [ $PORT -eq 1 ]
 then
echo "mysql is running"
else
echo "mysql is not running"
echo "progrome reeady to start mysql "

sudo service mysql start
./check_mysql.sh
fi