pimatic version in the UI

---

I’ve been trying for a while but can’t get this right and I think it’s a “limitation” in the pimatic core code.

I have this ShellSensor that will

  {
      "id": "pimatic-version",
      "name": "pimatic version",
      "class": "ShellSensor",
      "attributeName": "version",
      "attributeType": "number",
      "command": "check-pimatic-version"
    },

and this script pimatic-version

cat /usr/local/node_modules/pimatic/package.json |grep version\": |awk {'print $2'}|sed 's/,//g' |sed 's/"//g' > /tmp/pimatic-version

when I run it from the shell I get the expected 0.8.52 in /tmp/pimatic-version when writing these lines. but in pimatic it returns

already tried to set
"attributeType": "number",
to
"attributeType": "string",

?

@leader21 did I ever mention how many smart asses hang around that place?

nice!

@leader21 how did you realise the ‘Pimatic Free Space’. As a shell script? I don’t see it as part of the sysinfo plugin…

@skipper79

haven’t created this, that’s sebastiens idea. but generally it should work like this :

the freespace can be calculated via variable.
you 're having the used space via syssensor plugin.
then you can create a variable $freespace and a rule to calculate the freespace
IF $usedspace changes THEN $freespace = disksize - $usedspace

or maybe you can use the shellsensor plugin to grep the value from df command or similar.

then you can use the variable within a variables device
maybe @sebastienvg wants to share his idea with us?

@sebastienvg said:

@leader21 did I ever mention how many smart asses hang around that place?

well, sometimes it can be so easy that you don’t even try to think of it as solution.

@sebastienvg why not the easy way, all in the shellsensor?
like this:

  {
      "id": "pimatic-version",
      "name": "pimatic version",
      "class": "ShellSensor",
      "attributeName": "version",
      "attributeType": "string",
      "command": "cat /usr/local/node_modules/pimatic/package.json |grep version\\\": |awk {'print $2'}|sed 's/,//g' |sed 's/\"//g'",
      "interval": 180000
   },

greetings
jensebub

@jensebub said:

cat /usr/local/node_modules/pimatic/package.json |grep version\": |awk {‘print $2’}|sed ‘s/,//g’ |sed ‘s/"//g’

well because I am never sure the amount of \\ I’ll need to escape

@sebastienvg i used the “try&error-method” but it seems to be logical,… you have to escape all which could end or irritate parsing in the config.json,… like \ and " and so the result is:

"command": "cat /usr/local/node_modules/pimatic/package.json |grep version\\\": |awk {'print $2'}|sed 's/,//g' |sed 's/\"//g'"

try this tool for escaping characters
http://bernhardhaeussner.de/odd/json-escape/

@jensebub thank you for the explaination and @leader21 thanks for the link.

you’re welcome!

you’re welcome