Shell Variable Output Possible?

[Thomas Greene]

I have about the shell with Tasker. The documentation for shell interaction doesn't cover this.

Is it possible to pull an attribute out of the shell?

What I'm doing is loop a while command set by a variable in Tasker. What I'd like to do is display the iteration it is on. I tried doing the store output in variable and put the variable in a display overlay but it only displays it the second time around, and ALL of the iterations. (1, 2, 3, 4, etc..)

The script for reference:

x=0; while [ $x -lt %TASKERINPUTVARIABLE ]; do input tap 111 111; input tap 111 111; input tap 111 111; ((x++)); echo $x; done

The echo $x was necessary to get the output but not necessary for functionality of what I want done.

So really what I'd like to do is take (%TASKERINPUTVARIABLE - current pass number) and store that as a variable I could use in a Tasker Overlay. Make sense? Possible?

[TomL]

I don't think you can have that kind of ongoing output from a shell script to Tasker via the shell output or shell result return variables.  Those are meant for end of execution, one time only output.

You can simplify your example to a shell script that counts 1 2 3, with sleeps inbetween the numbers.

echo 1; sleep 1; echo 2; sleep 2; echo 3

One way to try to do it would be to have your script append output to a file, and Tasker could watch that file in a loop.  It's not elegant, but it would work.

echo 1 >> /sdcard/output.txt; sleep 1; echo 2 >> /sdcard/output.txt; sleep 2; echo 3 >> /sdcard/output.txt

Tom

[bdanders]

I'd bet you could build and send an intent from the shell that would set a Tasker variable, but I wouldn't know where to start trying to figure that out.

[bdanders]

I haven't quite managed to set a variable from the shell, but the following line will run a named task ('Test Task' in this case), which you could use to iterate a variable.

am broadcast -a net.dinglisch.android.tasker.ACTION_TASK -e version_number '1.0' -e task_name 'Test Task' --ei task_priority 9

[Thomas Greene]

I like the idea outputting the file.. I was able to get it to write the file with the value by using the following script:

x=0; while [ $x -lt %TASKERINPUTVARIABLE ]; do input tap 111 111; input tap 111 111; input tap 111 111; ((x++)); echo $x > /sdcard/Android/data/com.app.app/app/file.txt; done

This shell action is running in a scene on a button tap. Prior to that, on the same button tap, an action is showing the overlay which I want to read from the file. How can I get it to display the text in the file as it changes??

[Thomas Greene]

Is there an option to 'live' show the contents of the file or am I not thinking about it properly?

On Wednesday, June 12, 2013 11:37:07 AM UTC-5, TomL wrote:

[TomL]

An option in what? Android OS? No.  A shell terminal?  Yeah, you could look in the commands "tail" or "less".  There should be an option that will force it to refresh and reread the file contents.

Tom

[Tom Greene]

What I meant was the overlay so I think you answered that.

I'm getting the output I want in the file but since it is loop in the shell.. should I may be busting each command out and doing the iteration in tasker instead of the shell?

Tom Greene

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[TomL]

You can try that.  But I think doing it that way will be slower, as Tasker has to: open a shell process, the shell runs one iteration, exit and tell shell it is done.  Shell has to exit and tell Tasker it is done.  And so on.

Tom

[Tom Greene]

I think I may investigate using intents from the shell then.. Thanks Tom!

Tom Greene

[bdanders]

For reference, the following is a Python script that will set a tasker variable. This is what I used to figure out how to run a task, but I still can't quite tell how to set a variable from the shell. Let us know if you figure that out.

-------------------------
import android
import time
import datetime
droid=android.Android()

class Task():
    SET_VARIABLE = 547
    def new_task(self):
        self.action_cnt = 0
        self.extras = {'version_number': '1.0', 'task_name': 'task' + str(time.time()), 'task_priority': 9 }
    def set_var(self, varname, value):
        self.action_cnt += 1
        self.extras['action' + str(self.action_cnt)] = {'action': self.SET_VARIABLE, 'arg:1': varname, 'arg:2': value, 'arg:3': False, 'arg:4': False, 'arg:5': False}
    def run_task(self):
        taskIntent = droid.makeIntent('net.dinglisch.android.tasker.ACTION_TASK', None, None, self.extras).result
        droid.sendBroadcastIntent(taskIntent)
    def set_var_now(self, varname, value):
        self.new_task()
        self.set_var(varname, value)
        self.run_task()

t = Task()
t.set_var_now("%My_Var", 'my value')