How to combine multiple awk command and to print then with space
Question
I'm capturing URL content using cURL which gives output in HTML format. Using awk I'm capturing sensor name and its status.
(curl <MY URL> | awk -F"Sensor<\/th><td>" '{print $2}' | awk -F"<\/td></tr>" '{print $1}'; \
curl <my URL> | awk -F"Status<\/th><td><strong>" '{print $2}' | awk -F"<\/strong>" '{printf $1}' \
) | tr -d '\n' >> output
cURL input like,
<html><head><title>Sensor status for NumberOfThreadsSensor-NumberOfThreads</title></head><body>
<h1>Sensor status for NumberOfThreadsSensor-NumberOfThreads</h1>
<table>
<tr><th>Plugin</th><td>NumberOfThreadsSensor</td></tr><tr><th>Sensor</th><td>NumberOfThreads</td></tr><tr><th>Status</th><td>Ok</td></tr><tr><th>Created</th><td>Fri Aug 14 09:03:10 UTC 2020 (13 seconds ago)</td></tr><tr><th>TTL</th><td>30 seconds</td></tr><tr><th>Short message</th><td>1;14;28</td></tr><tr><th>Long message</th><td>1 [interval: 1 min];14 [interval: 30 min];28 [interval: 60 min]</td></tr></table>
<h2>Formats</h2><p>The status shown on this page is also available in the following machine-friendly formats:</p>
<ul>
<li><a href="/admin/monitoring/NumberOfThreadsSensor-NumberOfThreads/status">A simple status string</a>, Possible values: OK, WARNING, CRITICAL, UNKNOWN.</li>
<li><a href="/admin/monitoring/NumberOfThreadsSensor-NumberOfThreads/nagios">Nagios plugin output</a>, output formatted for easy integration with Nagios.</li>
<li><a href="/admin/monitoring/NumberOfThreadsSensor-NumberOfThreads/xml">Full xml</a> all available data in xml for easy parsing by ad-hoc monitoring tools.</li>
<li><a href="/admin/monitoring/NumberOfThreadsSensor-NumberOfThreads/prometheus">Prometheus output</a>, all available data in prometheus format</li>
</ul>
<p>Please do not rely on the output of this page for automated monitoring, use one of the formats above.</p>
</body></html>
Current output ScoreProcessorWarning
expected output ScoreProcessor Warning
Please help me to simplify my shell script and I'm in learning phase. Thanks for help
1 answers
solution1
0 ACCPTED 2020-08-14 09:11:01
With the input presented saved in /tmp/input.txt :
<h1>Sensor status for EventProcessorStatus-ScoreProcessor</h1>
<table>
<tr><th>Plugin</th><td>EventProcessorStatus</td></tr><tr><th>Sensor</th><td>ScoreProcessor</td></tr><tr><th>Status</th><td><strong>Warning</strong></td></tr><tr><th>Created</th><td>Fri Aug 10 00:16:23 UTC 2020 (0 seconds ago)</td></tr><tr><th>TTL</th><td>30 seconds</td></tr><tr><th>Short message</th><td>Endpoint is running, but has errors</td></tr><tr><th>Long message</th><td>Endpoint is running, but has errors<br/>
Number of errors in background process (xxxx) logs: 4<br/>
</td></tr></table>
<h2>Performance data</h2><table>
with my very limited knowledge of xmllint I ended with:
# Extract only table, get text from all tales
xmllint --html --xpath '//table//tr//text()' /tmp/input.txt |
# Because we know table has two rows, join two lines together
sed 'N;s/\n/\t/' |
# Filter Sensor and status only
sed -n '/Sensor\t/{s///;h}; /Status\t/{s///;x;G;p}' |
# Read the sensor and status to bash
{ IFS= read -r name; IFS= read -r status; echo "name=$name status=$status" ;}
which outputs:
name=ScoreProcessor status=Warning
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