[App_rpt-users] event subsystem variable use in system call

[mike at midnighteng.com]

Start by writing your function from asterisk CLI .
When it works, convert it to be called from shell.
But you are not going to get a asterisk var contents like you are
doing.

Linux shell does not know what ${RPT_ALINKS} is unless you
carry/import  the var from asterisk.
Your echo will always be blank.

...mike/kb8jnm

----- Original Message -----
From:
 "Users of Asterisk app_rpt" <app_rpt-users at lists.allstarlink.org>

To:
"Users of Asterisk app_rpt" <app_rpt-users at lists.allstarlink.org>
Cc:

Sent:
Wed, 5 Apr 2017 00:09:19 -0700
Subject:
Re: [App_rpt-users] event subsystem variable use in system call

Well, I was hoping that asterisk would have a way to expand asterisk
variables before the shell gets called ( by the s| syntax ). 
Apparently, asterisk is passing the command as is and the shell is
expanding the variable.  

On Tue, Apr 4, 2017 at 8:54 PM, <mike at midnighteng.com [1]>
 wrote:
I think your problem is that you are trying to execute from a linux
command and the subsystem resides at the asterisk level.

Not that you can do it from there but you must address it where it
resides.

...mike/kb8jnm

----- Original Message -----
From:
 "Users of Asterisk app_rpt" <app_rpt-users at lists.allstarlink.org [2]>

To:
<App_rpt-users at lists.allstarlink.org [3]>
Cc:

Sent:
Tue, 4 Apr 2017 16:39:51 -0700
Subject:
[App_rpt-users] event subsystem variable use in system call

I am learning about the event subsystem.

One of my events looks like this:

echo bla ${RPT_ALINKS} >> /tmp/blabla =  s|T|RPT_NUMLINKS

This executes when I connect.  The contents of /tmp/blabla is simply
bla.  I would have expected ${RPT_ALINKS} to have been expanded.  

Am I assuming functionality that doesn't exist?

Lowell

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