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#!/bin/bash
 1 
#!/bin/bash
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3 
#
 3 
#
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# Script that checks if given sites are up and sends an e-mail if they are not.
 4 
# Script that checks if given sites are up and sends an e-mail if the are not.
5 
# You should not run this script on the same servers your monitoring,
 5 
# You should not run this script on the same servers your monitoring,
6 
# neither should your e-mail account reside on a server behind same firewall as the sites your checking.
 6 
# neither should your e-mail account reside on a server behind same firewall as the sites your checking.
7 
#
 7 
#
8 
# Developer: oSource Development
 8 
# Developer: oSource Development
9 
# DevTeam: Marcus Uddenhed
 9 
# DevTeam: Marcus Uddenhed
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# Version: 0.5.0
 10 
# Version: 0.6.1
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# Web: http://www.osource.se
 11 
# Web: http://www.osource.se
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# Updated: 2017-08-31
 12 
# Updated: 2017-10-30
13 
#
 13 
#
14 
# Requires: mailx (http://heirloom.sourceforge.net/mailx.html)
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# Requires: heirloom-mailx (http://heirloom.sourceforge.net/mailx.html)
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#
 15 
#
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# Licensed under BSDL license, see license information on our homepage.
 16 
# Licensed under BSDL license, see license information on our homepage.
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#
 17 
#
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 18 
 
19 
#### Global variables ####
 19 
#### Global variables ####
20 
# Sites
 20 
# Sites
21 
checkSite[1]="https://";							# Add sites that you want to monitor, can be as many as you want.
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checkSite[1]="http://"						# Add sites that you want to monitor, can be as many as you want.
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checkSite[2]="http://";
 22 
checkSite[2]="https://"
23 
 
 23 
 
24 
# Retries
 24 
# Retries
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rInterval=8											# How many times should it retry until it set the site as down.
 25 
rInterval=8									# How many times should it retry until it set the site as down.
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rTime=20											# How many seconds shold it wait between retries.
 26 
rTime=20									# How many seconds shold it wait between retries.
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 27 
 
28 
# Mail
 28 
# Mail
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sendMail=yes										# Should i send an e-mail with failed sites.
 29 
sendMail=yes								# Should i send an e-mail with failed sites.
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mailFrom=""                                    		# From whom shall this mail be sent?
 30 
mailFrom=""									# From whom shall this mail be sent?
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mailTo=""											# To whom shall the mail be sent? Seperate recipients with a ","
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mailTo=""									# To whom shall the mail be sent?
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smtpHost=""											# The SMTP mail server that is going to process the mail.
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smtpHost=""									# The SMTP mail server that is going to process the mail.
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smtpAuth=yes										# Does the SMTP mail server require authentication(yes/no).
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smtpAuth=yes								# Does the SMTP mail server require authentication(yes/no).
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smtpUser=""											# Username if smtpAuth is set to yes.
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smtpUser=""									# Username if smtpAuth is set to yes.
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smtpPass=""											# password if smtpAuth is set to yes.
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smtpPass=""									# password if smtpAuth is set to yes.
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smtpPort=587										# Standard for non authenticated SMTP is 25, 587 is for authenticated SMTP.
 36 
smtpPort=587								# Standard for non authenticated SMTP is 25, 587 is for authenticated SMTP.
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 37 
mailBin="heirloom-mailx"					# executable file for mailx.
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 38 
 
38 
# Logging
 39 
# Logging
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logStatus=yes										# Should we log to local logfile(yes/no).
 40 
logStatus=yes								# Should we log to local logfile(yes/no).
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logPath="/var/log"									# Where should we put the log file(omit the traling slash).
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logPath="/var/log"							# Where should we put the log file(omit the traling slash).
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logName="oSiteChecker.log"							# name of log file.
 42 
logName="oSiteChecker.log"					# name of log file.
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 43 
 
43 
#### Do not edit anything below unless you know what you are doing. ####
 44 
#### Do not edit anything below unless you know what you are doing. ####
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 45 
 
45 
check_sites() {
 46 
check_sites() {
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        # Declare $is variable
 47 
	# Declare $is variable
47 
        is=0
 48 
	is=0
48 
 
 49 
 
49 
        # Start control
 50 
	# Start control
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        for i in "${checkSite[@]}"
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	for i in "${checkSite[@]}"
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        do
 52 
	do
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                CURL=$(curl -s --head $i)
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		CURL=$(curl -s --head $i)
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                if echo $CURL | grep "200 OK" > /dev/null
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		if echo $CURL | grep "200 OK" > /dev/null
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                then
 55 
		then
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                        # add entry to log file if logging enabled
 56 
			# add entry to log file if logging enabled
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                        if [ $logStatus == "yes" ]
 57 
			if [ $logStatus == "yes" ]
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                        then
 58 
			then
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                                echo `date +%F` `date +%T` "$i" "Host up" >> $logPath/$logName
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				echo `date +%F` `date +%T` "$i" "Host up" >> $logPath/$logName
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                        else
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			else
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                                # if logging set to no send to null
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				# if logging set to no send to null
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                                echo "" > /dev/null
 62 
				echo "" > /dev/null
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                        fi
 63 
			fi
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                else
 64 
		else
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                        # Collect all sites that do not respond as they should for further processing.
 65 
			# Collect all sites that do not respond as they should for further processing.
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                        siteArray[ $is ]="${i}"
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			siteArray[ $is ]="${i}"
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                        (( is++ ))
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			(( is++ ))
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                fi
 68 
		fi
68 
        done
 69 
	done
69 
 
 70 
 
70 
    # Check to see if any sites been reported as down.
 71 
    # Check to see if any sites been reported as down.
71 
        if [ ${#siteArray[@]} -ne 0 ]
 72 
	if [ ${#siteArray[@]} -ne 0 ]
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        then
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	then
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                # Test each failed site in a given amount of times.
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		# Test each failed site in a given amount of times.
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                for ((n=1;n<=$rInterval;n++))
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		for ((n=1;n<=$rInterval;n++))
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                do
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		do
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                        # Go through failed sites again to eliminate temporary glicthes.
 77 
			# Go through failed sites again to eliminate temporary glicthes.
77 
                        for i in "${siteArray[@]}"
 78 
			for i in "${siteArray[@]}"
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                        do
 79 
			do
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                                CURL=$(curl -s --head $i)
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				CURL=$(curl -s --head $i)
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                                if echo $CURL | grep "200 OK" > /dev/null
 81 
				if echo $CURL | grep "200 OK" > /dev/null
81 
                                then
 82 
				then
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                                        # remove succesful sites from array.
 83 
					# remove succesful sites from array.
83 
                                        delete=(${i})
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					delete=(${i})
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                                        siteArray=( "${siteArray[@]/$delete}" )
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					siteArray=( "${siteArray[@]/$delete}" )
85 
                                else
 86 
				else
86 
                                        # Keeps failed site in array.
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					# Keeps failed site in array.
87 
                                        echo "" > /dev/null
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					echo "" > /dev/null
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                                fi
 89 
				fi
89 
                        done
 90 
			done
90 
 
 91 
 
91 
                        # Clean empty lines in siteArray
 92 
			# Clean empty lines in siteArray
92 
                        tmpArray=()
 93 
			tmpArray=()
93 
                        for value in "${siteArray[@]}"
 94 
			for value in "${siteArray[@]}"
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                        do
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			do
95 
                                [[ $value != "" ]] && tmpArray+=($value)
 96 
				[[ $value != "" ]] && tmpArray+=($value)
96 
                        done
 97 
			done
97 
                        siteArray=("${tmpArray[@]}")
 98 
			siteArray=("${tmpArray[@]}")
98 
                        unset tmpArray
 99 
			unset tmpArray
99 
 
 100 
 
100 
                        # Debug
 101 
			# Debug
101 
                        #for i in "${siteArray[@]}"
 102 
			#for i in "${siteArray[@]}"
102 
                        #do
 103 
			#do
103 
                        #       echo ${i}
 104 
			#	echo ${i}
104 
                        #done
 105 
			#done
105 
 
 106 
 
106 
                        # Sleeps for an amount of time between checking site status again.
 107 
			# Sleeps for an amount of time between checking site status again.
107 
                        sleep $rTime
 108 
			sleep $rTime
108 
                done
 109 
		done
109 
        fi
 110 
	fi
110 
 
 111 
 
111 
        # notification action
 112 
	# notification action
112 
        if [ ${#siteArray[@]} -ne 0 ]
 113 
	if [ ${#siteArray[@]} -ne 0 ]
113 
        then
 114 
	then
114 
        #echo ${#siteArray[@]}
 115 
	#echo ${#siteArray[@]}
115 
                # Send an email with status
 116 
		# Send an email with status
116 
                if [ $sendMail == "yes" ]
 117 
		if [ $sendMail == "yes" ]
117 
                then
 118 
		then
118 
                        # Temp path for mailbody.txt
 119 
			# Temp path for mailbody.txt
119 
                        tmpPath=/tmp
 120 
			tmpPath=/tmp
120 
 
 121 
 
121 
                        # Set mail subject
 122 
			# Set mail subject
122 
                        mailSubject="Connectivity test failed"
 123 
			mailSubject="Connectivity test failed"
123 
 
 124 
 
124 
                        # Build mail body
 125 
			# Build mail body
125 
                        echo "Hi" > $tmpPath/mailbody.txt
 126 
			echo "Hi" > $tmpPath/mailbody.txt
126 
                        echo "" >> $tmpPath/mailbody.txt
 127 
			echo "" >> $tmpPath/mailbody.txt
127 
                        echo "One or more servers is not responding as the should, see complete list below." >> $tmpPath/mailbody.txt
 128 
			echo "One or more servers is not responding as the should, see complete list below." >> $tmpPath/mailbody.txt
128 
                        echo "" >> $tmpPath/mailbody.txt
 129 
			echo "" >> $tmpPath/mailbody.txt
129 
                        for i in "${siteArray[@]}"
 130 
			for i in "${siteArray[@]}"
130 
                        do
 131 
			do
131 
                                echo ${i} >> $tmpPath/mailbody.txt
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				echo ${i} >> $tmpPath/mailbody.txt
132 
                        done
 133 
			done
133 
                        #echo "Test - Array size:" ${#siteArray[@]} >> $tmpPath/mailbody.txt
 134 
			#echo "Test - Array size:" ${#siteArray[@]} >> $tmpPath/mailbody.txt
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                        echo "" >> $tmpPath/mailbody.txt
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			echo "" >> $tmpPath/mailbody.txt
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                        echo "Sent:" `date +%Y-%m-%d` `date +%H:%M` >> $tmpPath/mailbody.txt
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			echo "Sent:" `date +%Y-%m-%d` `date +%H:%M` >> $tmpPath/mailbody.txt
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                        echo "" >> $tmpPath/mailbody.txt
 137 
			echo "" >> $tmpPath/mailbody.txt
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                        echo "Regards" >> $tmpPath/mailbody.txt
 138 
			echo "Regards" >> $tmpPath/mailbody.txt
138 
                        echo "" >> $tmpPath/mailbody.txt
 139 
			echo "" >> $tmpPath/mailbody.txt
139 
                        echo "Your $(cat /etc/hostname) server." >> $tmpPath/mailbody.txt
 140 
			echo "Your $(cat /etc/hostname) server." >> $tmpPath/mailbody.txt
140 
 
 141 
 
141 
                        # Send data
 142 
			# Send data
142 
                        MAILRC=/dev/null mailx -n
 143 
			MAILRC=/dev/null $mailBin -n
143 
                        if [ $smtpAuth = "no" ]
 144 
			if [ $smtpAuth = "no" ]
144 
                        then
 145 
			then
145 
                                env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort mailx -v -n -s "$mailSubject" $mailTo  <$tmpPath/mailbody.txt
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				env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort $mailBin -v -n -s "$mailSubject" $mailTo  <$tmpPath/mailbody.txt
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                        fi
 147 
			fi
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                        if [ $smtpAuth = "yes" ]
 148 
			if [ $smtpAuth = "yes" ]
148 
                        then
 149 
			then
149 
                                env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort smtp-auth-user=$smtpUser smtp-auth-password=$smtpPass smtp-use-starttls=yes ssl-verify=ignore smtp-auth=login mailx -n -s "$mailSubject" $mailTo <$tmpPath/mailbody.txt
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				env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort smtp-auth-user=$smtpUser smtp-auth-password=$smtpPass smtp-use-starttls=yes ssl-verify=ignore smtp-auth=login $mailBin -n -s "$mailSubject" $mailTo <$tmpPath/mailbody.txt
150 
                        fi
 151 
			fi
151 
 
 152 
 
152 
                        # Remove temporary mailbody.txt file
 153 
			# Remove temporary mailbody.txt file
153 
                        rm $tmpPath/mailbody.txt
 154 
			rm $tmpPath/mailbody.txt
154 
                else
 155 
		else
155 
                        echo "" > /dev/null
 156 
			echo "" > /dev/null
156 
                fi
 157 
		fi
157 
 
 158 
 
158 
                # add entry to log file if logging enabled
 159 
		# add entry to log file if logging enabled
159 
                if [ $logStatus == "yes" ]
 160 
		if [ $logStatus == "yes" ]
160 
                then
 161 
		then
161 
                        for i in "${siteArray[@]}"
 162 
			for i in "${siteArray[@]}"
162 
                        do
 163 
			do
163 
                                echo `date +%F` `date +%T` ${i} "Host down" >> $logPath/$logName
 164 
				echo `date +%F` `date +%T` ${i} "Host down" >> $logPath/$logName
164 
                        done
 165 
			done
165 
                fi
 166 
		fi
166 
        fi
 167 
	fi
167 
}
 168 
}
168 
 
 169 
 
169 
mail_test() {
 170 
mail_test() {
170 
        # Temp path for mailbody.txt
 171 
	# Temp path for mailbody.txt
171 
        tmpPath=/tmp
 172 
	tmpPath=/tmp
172 
 
 173 
 
173 
        # Set mail subject
 174 
	# Set mail subject
174 
        mailSubject="Mail test"
 175 
	mailSubject="Mail test"
175 
 
 176 
 
176 
        # Build mail body
 177 
	# Build mail body
177 
        echo "Hi" > $tmpPath/mailbody.txt
 178 
	echo "Hi" > $tmpPath/mailbody.txt
178 
        echo "" >> $tmpPath/mailbody.txt
 179 
	echo "" >> $tmpPath/mailbody.txt
179 
        echo "This is a test mail to see that the mail function works." >> $tmpPath/mailbody.txt
 180 
	echo "This is a test mail to see that the mail function works." >> $tmpPath/mailbody.txt
180 
        echo "" >> $tmpPath/mailbody.txt
 181 
	echo "" >> $tmpPath/mailbody.txt
181 
        echo "Sent:" `date +%Y-%m-%d` `date +%H:%M` >> $tmpPath/mailbody.txt
 182 
	echo "Sent:" `date +%Y-%m-%d` `date +%H:%M` >> $tmpPath/mailbody.txt
182 
        echo "" >> $tmpPath/mailbody.txt
 183 
	echo "" >> $tmpPath/mailbody.txt
183 
        echo "Regards" >> $tmpPath/mailbody.txt
 184 
	echo "Regards" >> $tmpPath/mailbody.txt
184 
        echo "" >> $tmpPath/mailbody.txt
 185 
	echo "" >> $tmpPath/mailbody.txt
185 
        echo "Your $(cat /etc/hostname) server." >> $tmpPath/mailbody.txt
 186 
	echo "Your $(cat /etc/hostname) server." >> $tmpPath/mailbody.txt
186 
 
 187 
 
187 
        # Send data
 188 
	# Send data
188 
        MAILRC=/dev/null mailx -n
 189 
	MAILRC=/dev/null $mailBin -n
189 
        if [ $smtpAuth = "no" ]
 190 
	if [ $smtpAuth = "no" ]
190 
        then
 191 
	then
191 
                env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort mailx -v -n -s "$mailSubject" $mailTo  <$tmpPath/mailbody.txt
 192 
		env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort $mailBin -v -n -s "$mailSubject" $mailTo  <$tmpPath/mailbody.txt
192 
        fi
 193 
	fi
193 
        if [ $smtpAuth = "yes" ]
 194 
	if [ $smtpAuth = "yes" ]
194 
        then
 195 
	then
195 
                env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort smtp-auth-user=$smtpUser smtp-auth-password=$smtpPass smtp-use-starttls=yes ssl-verify=ignore smtp-auth=login mailx -n -s "$mailSubject" $mailTo <$tmpPath/mailbody.txt
 196 
		env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort smtp-auth-user=$smtpUser smtp-auth-password=$smtpPass smtp-use-starttls=yes ssl-verify=ignore smtp-auth=login $mailBin -n -s "$mailSubject" $mailTo <$tmpPath/mailbody.txt
196 
        fi
 197 
	fi
197 
 
 198 
 
198 
        # Remove temporary mailbody.txt file
 199 
	# Remove temporary mailbody.txt file
199 
        rm $tmpPath/mailbody.txt
 200 
	rm $tmpPath/mailbody.txt
- 
 
 201 
}
- 
 
 202 
 
- 
 
 203 
script_help() {
- 
 
 204 
	echo "Usage: oSiteChecker.sh <parameter>"
- 
 
 205 
	echo ""
- 
 
 206 
	echo "Parameters:"
- 
 
 207 
	echo "--check      Does a test connection to pre-configured sites and test to see if they are responding."
- 
 
 208 
	echo "--mail-test  Does a test on the mail function to see if all mail related settings are okay."
200 
}
 209 
}
201 
 
 210 
 
202 
case $1 in
 211 
case $1 in
203 
        --check)
 212 
	--check)
204 
                check_sites
 213 
		check_sites
205 
        ;;
 214 
	;;
206 
    --mail-test)
 215 
    --mail-test)
207 
                mail_test
 216 
		mail_test
208 
    ;;
 217 
    ;;
209 
        *)
 - 
 
210 
                script_help
 - 
 
211 
        ;;
 - 
 
212 
esac
 - 
 
213 

            218
            
	*)

          

          

            -
            
 

            219
            
		script_help

          

          

            -
            
 

            220
            
	;;

          

          

            -
            
 

            221
            
esac

          

          

            -
            
 

            222