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Re: Ignore a script object or applet or what...?
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Re: Ignore a script object or applet or what...?


  • Subject: Re: Ignore a script object or applet or what...?
  • From: Emmett Gray <email@hidden>
  • Date: Thu, 24 Feb 2005 10:33:56 -0500

Hi,

I just found this in technote 2065 at developer.apple.com; I can write to a file AND return control. Thanks for the tip.

--Emmett

A: Use "do shell script "command > file_path 2>&1 &"". do shell script will return immediately with no result and your AppleScript script will be running in parallel with your shell script. The shell script's output will go into file_path; if you don't care about the output, use "/dev/null". There is no direct support for getting or manipulating the background process from AppleScript, but see the next question.


On 2/23/05 10:59 PM, "Emmett Gray" <email@hidden> wrote:

 Hi,

 I'm trying to track the progress of a psync operation I've scripted,
 by using fstat to see if the psync output is still open. The reason I
 want to do this is because I want to do something else in the script
 while psync is running (it could run for quite a while). I would plan
 to use an idle handler to run fstat periodically. I'm using the
 following code:

 do shell script ("/usr/local/bin/psync " & theSource & " " & theDest
 & " > ~/Library/Logs/" & logName)
 do shell script "fstat ~/Library/Logs/" & logName

 What is happening is that fstat doesn't get a chance to run until the
 psync operation is finished, so it always reports the logfile as
 closed. Can I create a script object or other object in which to put
 the psync action which I could then ignore and proceed to the next
 script step while it runs?

Andrew Oliver <email@hidden> responded:
Standard 'do shell script' stuff. To background a shell script task you need
to append ' > /dev/null 2>&1 &' to the end of the command. This suppresses
output and returns control to your AppleScript while the process runs in the
background, so:

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