I see that you mention "images" in your question, and it looks like you
have perhaps already got the answer you needed, but I wanted to reply to
this thread in case others are brought here later, with a response to the
question I *thought* you were asking (but I may have been wrong!).
I recently wrote a bash shell script (to be invoked by 'cron') that emails
me the previous day's rain total. To do so I invoke a SQL script to get the
data from the database, which is what I thought you were looking to do.
*#!/bin/bash*
*# email me summary of yesterday's local weather*
*# robcranf...@xxx.com*
*SQL_RESULT=`echo "SELECT DATETIME(MAX(dateTime), 'unixepoch', 'localtime')
\*
* AS Date, sum AS RainTotal FROM archive_day_rain WHERE dateTime < (SELECT
MAX(dateTime) \*
* FROM archive_day_rain);" | sqlite3 /var/lib/weewx/weewx.sdb`*
*SUBJECT=`echo $SQL_RESULT | awk 'BEGIN { FS="[| ]"} {print "Rain for",
$1}'`*
*MESSAGE=`echo $SQL_RESULT | awk 'BEGIN { FS="[| ]"} {print "The total rain
on", $1, "was", $3, "inches.\n"}'`*
*echo $MESSAGE |*
* mutt -s "$SUBJECT" -e 'my_hdr From:WeexReporter@x10pi' --
robcranf...@xxx.com*
HTH.
/rob
On Saturday, October 29, 2016 at 1:50:59 PM UTC-7, Jim W. wrote:
>
> I have very little Linux (or other programming) experience... Decades ago
> I did a little Visual Basic programming but that is a dim memory. I have
> managed (with the generous help of this forum) to setup and run weewx on a
> Rpi3b. WS2080 WU and Motion sending images to WU.
>
> My next project is to add overlays of temperature and wind speed and
> direction to the images I'm sending to WU. Most of it I have figured out
> but what I don't know is where to find the actual data (temp) within weewx?
>
> Thanks!
>
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