Monitor linux services using bash script

# Vi check_httpd.sh

#!/bin/sh
run=`ps ax | grep /usr/local/apache/bin/httpd | grep -v grep | cut -c1-5 | paste -s -`
if [ “$run” ];
then
echo “apache is running” > /home/admin/check_httpd.log
else
/usr/local/apache/bin/apachectl -k restart
mail -s “Apache server restarted by check-httpd script ” admin [at]adminlogs[dot]info < /usr/local/apache/logs/error.log
fi

Or ( only for apache )

# Vi check_httpd.sh

#!/bin/sh
cd /tmp
wget adminlogs.info:80
if [ $? -gt 0 ]; then
/usr/local/apache/bin/apachectl -k restart
mail -s “Apache server restarted by check-httpd script ” admin [at]adminlogs[dot]info < /usr/local/apache/logs/error.log
fi

$? contains the return code of the last executed process. -gt means greater than. Usually programs return zero on success or something else on failure

Add the script to crontab ( It will check the status in every 5 minutes )

*/5 * * * * /bin/bash check_httpd.sh

Its worked fine and now I have no worry about that website and getting good sleep :)

This entry was posted in Apache, Linux, Optimize, Shell Script. Bookmark the permalink.

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