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<p>Hello List </p>
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<p>I am trying to write a <span style="color:#ff0000">plugin</span> to count the number of connection of a specific type on a port .</p>
<p>I wrote the script that gives me the output i require and running the script on the machine i need it it works well .</p>
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<p>The problem is when i am trying to execute the script via <span style="color:#ff0000">NPRE</span> , i added the command and <span style="color:#ff0000">params</span> to the <span style="color:#ff0000">nrpe</span>.<span style="color:#ff0000">cfg</span> and run the test , and the result returning to the nagios server is always a numeric "0" , when i put a text string it returns the string no problem , but when i try to add a number from a <span style="color:#ff0000">variable</span> , it shows only 0 .</p>
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<p>actuall script line :</p>
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<p>if [ "$1" = "2598" ]; then</p>
<p> W=`lsof -Pn -i | grep squid | grep ESTABLISHED | grep -v 127.0.0.1 | grep 2598 | wc -l`</p>
<p> echo "Number of connections is "$W</p>
<p> exit 0</p>
<p>fi</p>
<p></p>
<p>from the messages log :</p>
<p>Running command: /usr/lib/nagios/plugins/check_squid_citrix.sh 2598</p>
<p>Mar 18 14:18:46 host nrpe[3869]: Command completed with return code 3 and output: Number of connections is 0</p>
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<p>running from the nagios server: </p>
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<p>../libexec/check_nrpe -H X.X.X.X -c check_2598</p>
<p>Number of connections is 0</p>
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<p>Manual execution on tartget server: </p>
<p>sh -x /usr/lib/nagios/plugins/check_squid_citrix.sh 2598</p>
<p>+ '[' 2598 = 1494 ']'</p>
<p>+ '[' 2598 = 2598 ']'</p>
<p>++ lsof -Pn -i</p>
<p>++ grep squid</p>
<p>++ grep ESTABLISHED</p>
<p>++ grep -v 127.0.0.1</p>
<p>++ grep 2598</p>
<p>++ wc -l</p>
<p>+ W=83</p>
<p>+ echo 'Number of connections is 83'</p>
<p>Number of connections is 83</p>
<p>+ exit 0</p>
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<p>Any ideas why i am only getting the 0 output ?</p>
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<p>-- </p>
<p><span style="color:#ff0000">Assaf</span> <span style="color:#ff0000">Flatto</span></p>
<p><span style="color:#ff0000">SSP</span> Ops Team</p>
<p>Linux System Administrator</p>
<p>169 <span style="color:#ff0000">Euston</span> Road, London, NW1 2<span style="color:#ff0000">AE</span></p>
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