Bash脚本：Apache服务器是否正在运行

Question

I'm trying to achieve the following steps using bash script:

1) Check the status of Apache Server .

2) If it is up and running, do nothing. If it is not, then go to step 3.

3) If server is not running, then send a failure email first and restart the server

4) After restarting, check the status again, and send a confirmation email

Here is my code:

#checking if Apache is running or not
ps auxw | grep apache2 | grep -v grep > /dev/null

if [ $? != 0 ]
then
mailx -s "Apache web server  is down, Trying auto-restart" -$

# web server down, restart the server
sudo /etc/init.d/apache2 restart > /dev/null
sleep 10

#checking if apache restarted or not -- This is not working
ps auxw | grep apache2 | grep -v grep > /dev/null
if [ $? = 0 ]
 then
    mailx -s "Apache restarted succesfully" -r "$SENDEREMAIL"  "$NOTIFYEMAIL"       < /$
 else
    mailx -s "Restart Failed, try restarting manually" -r "$SENDEREMAIL"   "$NOTIFYEMAIL" <$
fi
fi

The code is working properly till step 3, and failing/not working on step 4 ie script is unable to check the status of the server after restart and sending a confirmation email. Can someone please let me know where I'm going wrong.

Answer 1

Try this:

#checking if Apache is running or not

if ! pidof apache2 > /dev/null
then
    mailx -s "Apache web server  is down, Trying auto-restart"

    # web server down, restart the server
    sudo /etc/init.d/apache2 restart > /dev/null
    sleep 10

    #checking if apache restarted or not
    if pidof apache2 > /dev/null
    then
        message="Apache restarted successfully"
    else
        message="Restart Failed, try restarting manually"
    fi
    mailx -s "$message" -r "$SENDEREMAIL" "$NOTIFYEMAIL"
fi

Note: every mailx line had a trailing -$ , < /$ , or <$ -- these looked like typos and were deleted.