Question : Restart mySQL if server load is more then 10

I am trying to write a shell script which I will later put in cron for checking server load and if server load is more then 10, it will restart mySQL.

Presently if I comment line number 7, I do get the email alert but command for mysql restart is not working. This command does work for me on SSH for restarting mysql.

Please help.

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#!/bin/bash
srvrnm=`hostname` # get the hostname of the server 
MRESTART="/sbin/service mysqld restart"
temp="/home/admin/script/tmp/mailinfo" # File storing formated output 
cur=`uptime | awk '{print $10}' | tr -d , | cut -d. -f1` # Load avg 
if [ $cur -ge 10 ]; then # Condition if 
$MRESTART>/dev/null
################### Formation for email output ##################
echo "Hi," > $temp 
echo " " >> $temp 
echo " " >> $temp 
echo "We have noticed high server load on `hostname`." >> $temp 
echo " " >> $temp 
echo " " >> $temp 
echo "Thanks," >> $temp 
echo " " >> $temp 
echo "- Linux SysAdmin." >> $temp 
###################################################### 
mail -s "Alert: Server Load `hostname`" [email protected] < $temp 
fi

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Answer : Restart mySQL if server load is more then 10

Try removing the ">/dev/null" and do a test run of the script from the command line (not cron), using:
bash -x [scriptname]

This will tell what's executing. Paste the output back here.

Question : Restart mySQL if server load is more then 10

Answer : Restart mySQL if server load is more then 10

Try removing the ">/dev/null" and do a test run of the script from the command line (not cron), using:bash -x [scriptname]This will tell what's executing. Paste the output back here.

Try removing the ">/dev/null" and do a test run of the script from the command line (not cron), using:
bash -x [scriptname]

This will tell what's executing. Paste the output back here.