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Re: Queuing at job from within php program?

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On Mon, 17 Oct 2011 11:20:38 -0400, Jerry Stuckle wrote:

> On 10/17/2011 9:24 AM, bobm3@worthless.info wrote:
>> Fellow php'ers;
>>
>> I'm having some difficulty getting this to work:  Based on a date/time
>> selected by a user on a web form I would like to use the "at" command
>> to schedule that task.
>>
>> I've tried various php functions (system, exec, passthru) with the same
>> results (return code 1 - which I cannot seem to get the error message
>> from).
>>
>> Here is a sample code snippet:
>>
>> $cmd = "echo \"podcast -c $filename\" | at $hr:$mn $_ampm";
>> passthru("$cmd", $Retcode);
>> echo "$Retcode";
>>
>> returns 1
>>
>> Then I thought that perhaps the 'at' was not reading stdin in this case
>> so I tried a temporary file approach:
>>
>> $cmd =	"echo \"podcast -c $filename\"";
>> file_put_contents($filename.tmp, $cmd); passthru("at $_hr:$_mn $_ampm< 
>> $filename.tmp", $_RetVal); echo "$_RetVal";
>>
>> This time it returned 2
>>
>> I've got to be misunderstanding this function.  So, I thought if any of
>> you skilled readers have had luck with doing something like this you
>> may be willing to share.  However, any other suggestions greatly
>> appreciated.
>>
>> Thanks
> 
> 
> What is actually in $cmd when you execute the passthru command?
> 
> What happens when you type this exact output at a command line prompt?

I've echoed out the contents of $cmd in my testing.  It does contain 
exactly what is intended:
echo "podcast -c abc123 | at 10:01 am"

Also, the command I'm trying to execute works perfectly from the CLI with 
the same (appropriate) values.  

I'm thinking that there might be a permissions issue but I'm unable to 
obtain the error message from the passthru command.  

I suppose next I will try to create a small php script to emulate this 
from the CLI and perhaps them I will see the error (if any).

Thanks

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Queuing at job from within php program? bobm3@worthless.info - 2011-10-17 13:24 +0000
  Re: Queuing at job from within php program? Jerry Stuckle <jstucklex@attglobal.net> - 2011-10-17 11:20 -0400
    Re: Queuing at job from within php program? bobm3@worthless.info - 2011-10-17 15:51 +0000
      Re: Queuing at job from within php program? Jerry Stuckle <jstucklex@attglobal.net> - 2011-10-17 12:47 -0400
        Re: Queuing at job from within php program? Robert Heller <heller@deepsoft.com> - 2011-10-17 13:27 -0500
          Re: Queuing at job from within php program? Jerry Stuckle <jstucklex@attglobal.net> - 2011-10-17 16:53 -0400
      Re: Queuing at job from within php program? "Álvaro G. Vicario" <alvaro.NOSPAMTHANX@demogracia.com.invalid> - 2011-10-18 09:51 +0200
  Re: Queuing at job from within php program? Denis McMahon <denismfmcmahon@gmail.com> - 2011-10-18 03:43 +0000
  Re: Queuing at job from within php program? Erwin Moller <Since_humans_read_this_I_am_spammed_too_much@spamyourself.com> - 2011-10-18 10:12 +0200
    Re: Queuing at job from within php program? bobm3@worthless.info - 2011-10-19 21:40 -0400
      Re: Queuing at job from within php program? SOLVED! bobm3@worthless.info - 2011-10-20 21:21 -0400

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