18 lines
523 B
Bash
Executable File
18 lines
523 B
Bash
Executable File
#!/bin/bash
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# Call this script from a cron job:
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# MAILTO=jody@kaplon.us
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# 0,30 * * * * ~/dead-man-qry.bash
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# Build in a buffer of 15min to avoid false positives.
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NUMHRS=6.25
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# set now variable
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NOW=$(date -u +"%Y-%m-%d %H:%M:%S")
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RESULT=$(sqlite3 /var/www/tenniscourtsopen.com/courtsopen.db "select published_at from Alerts where datetime(published_at) > datetime('${NOW}', '-${NUMHRS} hours') order by datetime(published_at) limit 1")
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if [ -z "$RESULT" ]; then
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echo "No data from device in last $NUMHRS hours."
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fi
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