Can I catch external errors?

[sshafe]

Within a script of mine, I'm kicking off an external process (defrag) and want to catch and handle any errors that the defrag might throw. Is there a way to do this?

If external error
call Error_handling

?

Thanks in advance

 

[RobSchultz]

lngRetVal = oWSH.Run("some executable",1,TRUE) 'wait for exit
If lngRetVal<>0 Then
   MsgBox &quot;Error #&quot; & lngRetVal & &quot; was returned after running some program&quot;
End If

Of course, this will only work if the program you call doesn't spawn a separate process (which would return execution back to the WSH Script prematurely) and if the executed program returns back error codes upon exit.

HtH,


Rob
robschultz@yahoo.com
-Focus on the solution to the problem, not the obstacles in the way.-

 

[sshafe]

Those are actually the error messages I watch to catch. Here's the deal. I am kicking off a defrag process, (Not microsofts, or that would be easy), and I want to catch any messages it throws out, good or bad, and log them. Any ideas.

Thanks.

 

[shaddow]

Try to check if that defrag software has some message logging and then you have to check that log.

Other way wrote your own defrag program )

________
George, M

 

[strongm]

>Other way wrote your own defrag program )

Not necessarily as silly as it sounds, since MS added defragmentation API's to Windows 2000 and above...

(but probably not possible to do in VBScript)

 

[shaddow]

You make an component(ActiveX) and you can use in what script you want.

________
George, M

 

[strongm]

Yes, jolly good. So the defrag code won't actually be in VBScript, will it? Which was my point.

 

[RobSchultz]

I'm pretty sure there is an event log COM object (or perhaps through WBEM) you can connect to through VB/J-Script. The question then becomes; Does the defrag proggie output to the event log? Otherwise, you will have to parse out a log file using the file system object (ugh!). If you want to scan and read message output to the screen you will need VB (or better) or WinBatch (or comparable) - programs that can scrap screens and/or hook into the Windows messaging layer.

Regards,

Rob
robschultz@yahoo.com
-Focus on the solution to the problem, not the obstacles in the way.-

 

[JPBERGEZ]

Hi
Just have a look at

http://www.tek-tips.com/faqs.cfm?spid=329&sfid=3330.

It's a basic way to catch the output of an external program after it ends.

 

[Blaine2]

With Windows Script Host 5.6 or better use the Exec method which allows you to catch the stdout and stderr streams.

I find this works better than Run.

example:

Dim oExec
Set oExec = oWsh.Exec(ExecStr)
Do While oExec.Status =0
Wscript.Sleep (100)
Loop

If oExec.ExitCode <> 0 Then (oExec.ExitCode)
WScript.Echo &quot;Warning: Non-zero exit code&quot; & vbcrlf & oExec.ExitCode
End If

'Displays stdOut
If Not oExec.StdOut.AtEndOfStream Then
strErrOut = &quot;StdOut: &quot; & oExec.StdOut.ReadAll
Wscript.echo strErrOut
End If

'Display stdErr
If Not oExec.StdErr.AtEndOfStream Then
strErrOut = &quot;ERROR &quot; & oExec.StdErr.ReadAll
Wscript.echo strErrOut
End If