Read Logfile line by line

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Hey guys!
Am talkin with @hyperx about a little problem that needs to be solved.
He has a log with 10 or more lines. Each line has a temperature value but nothing else.
So lets say something like

18.5
23.4
13.6
etc…

Now the question is, how to get these values into Pimatic?
There’s no property of the value - no indicator or anything. Just plain text with the above sample values.
Each value needs to become a separate variable.
Anybody an idea?
since i failed with grep , awk and sed I was thinking of a script to take apart the logfile and write each value to a separate file in /tmp to read these files separately with the logreader or variables device.
what do you think? maybe it’s even possible without script …

ok i found a probable command
tail -n +6 temp.log | head -n +1
will show the 6th line of the log (an so on …)

getting closer …

{
  "id": "templog",
  "name": "Temperature Logfile",
  "class": "ShellSensor",
  "attributeName": "zeile1",
  "attributeType": "number",
  "command": " tail -n +1 /home/pi/temp.log | head -n +1",
  "interval": 10000
},

dumb question - but is there a way to “array” shellsensors?!
otherwise i’ll have to create a device for each line

my solution seems to work but i am not satisfied with it …

here are the variables. the first three are the variables devices i created, the last three is the variables device

variables device in the gui :

and thats my config for three lines of logfile :

    {
      "id": "templog1",
      "name": "Temperature Logfile",
      "class": "ShellSensor",
      "attributeName": "zeile1",
      "attributeType": "number",
      "command": " tail -n +1 /home/pi/temp.log | head -n +1",
      "interval": 10000
    },
    {
      "id": "templog2",
      "name": "Temperature Logfile",
      "class": "ShellSensor",
      "attributeName": "zeile2",
      "attributeType": "number",
      "command": " tail -n +2 /home/pi/temp.log | head -n +1",
      "interval": 10000
    },
	{
      "id": "templog3",
      "name": "Temperature Logfile",
      "class": "ShellSensor",
      "attributeName": "zeile3",
      "attributeType": "number",
      "command": " tail -n +3 /home/pi/temp.log | head -n +1",
      "interval": 10000
    },
	{
      "id": "temploggesamt",
      "class": "VariablesDevice",
      "name": "Temperatur Uebersicht",
      "variables": [
        {
          "name": "zeile1",
          "type": "number",
          "expression": "$templog1.zeile1",
          "unit": "°C"
        },
        {
          "name": "zeile2",
          "type": "number",
          "expression": "$templog2.zeile2",
          "unit": "°C"
        },
	    {
          "name": "zeile3",
          "type": "number",
          "expression": "$templog3.zeile3",
          "unit": "°C"
        }
      ]
    },

every other solution is welcome !!