conky with conditionals

[Member blur13]

Hi!

So here is the problem. I use wttr.in to get weather data to output display in conky. For example:

${execi 1200 curl -sm 2 wttr.in/stockholm?format="%w"\&M}

the -m 2 gives 2 seconds before the operation times out. Otherwise I’ve found that conky gets stuck when the curl command never finishes and nothing is displayed. I have to manually kill the curl processes in htop to get it to move on. And then the same thing repeats 20 min later. So -m 2 solves that problem. However, I have about five curl commands to wttr and some formatting and text that looks weird when nothing is returned from wttr. I’ve found wttr to be somewhat unreliable so this happens a lot. Enough times that I want to make a conditional along the lines of, “if curl times out, then…”. The exit code when curl times out is 28. So basically, when executing the above command, and the exit code is 28, then I dont want conky to use any of the code below. Any way to do this?

[Member blur13]

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Maybe a smarter approach would be to use a shell script, run the above curl command and then, depending on the exit code, either run conky -c .conkyrc
conky -c .conkyrc2

where .conkyrc2 would be free from any curl wttr references. Anyone here good at scripting?

[Member sybok]

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Hm, ‘conky -c’ is nice.
How about the following usage of special variable ‘$?’ in BASH

#!/bin/bash
curl <whatever>
exitcode="$?"
if [ "${exitcode}" -eq 28 ]; then
  conky -c <config one>
else
  conky -c <config two>
fi

See e.g. https://devhints.io/bash

[Member blur13]

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Thank you! That is excellent. I simplified it to:

#!/bin/bash

curl <whatever>

if [ $? -eq 28 ]; then
  conky -c <config one>
else
  conky -c <config two>
fi

works great!

• This reply was modified 1 month, 1 week ago by blur13.

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