Vista - redirecting standar output when using [System.Diagnostics.Process]::Start

Hello all. I want to execute a command against a bunch of IP nodes (servers,
routers) in PARALLEL (not one after another). I demonstrate my case using
PING, but it could be another tool.

The following code works ok:

$nodes="server1", "server2", "router1" #... a lot of nodes
$nodes | foreach {[System.Diagnostics.Process]::Start("ping.exe","$_") }

Now, i need to log all the responses to a unique file for every node, so I
try:

$nodes | foreach {[System.Diagnostics.Process]::Start("ping.exe","$_ >
$_.log 2>&1") }

But it's not working. The problem, i think, is the redirection of the
standard output and standard error.
Thanks for your help.

Regards,
Freddy Chavez.

Does this help

$nodes | foreach{ping "$_" | out-file "$_.log" }

--
Richard Siddaway
Please note that all scripts are supplied "as is" and with no warranty
Blog: http://richardsiddaway.spaces.live.com/
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"freddy chavez" wrote:

> Hello all. I want to execute a command against a bunch of IP nodes (servers,
> routers) in PARALLEL (not one after another). I demonstrate my case using
> PING, but it could be another tool.
>
> The following code works ok:
>
> $nodes="server1", "server2", "router1" #... a lot of nodes
> $nodes | foreach {[System.Diagnostics.Process]::Start("ping.exe","$_") }
>
> Now, i need to log all the responses to a unique file for every node, so I
> try:
>
> $nodes | foreach {[System.Diagnostics.Process]::Start("ping.exe","$_ >
> $_.log 2>&1") }
>
> But it's not working. The problem, i think, is the redirection of the
> standard output and standard error.
> Thanks for your help.
>
> Regards,
> Freddy Chavez.
>
>
>

"freddy chavez" <freddychavez22@hotmail.com> wrote in message
news:#WG2kxVzHHA.748@TK2MSFTNGP04.phx.gbl...
> Hello all. I want to execute a command against a bunch of IP nodes
> (servers, routers) in PARALLEL (not one after another). I demonstrate my
> case using PING, but it could be another tool.
>
> The following code works ok:
>
> $nodes="server1", "server2", "router1" #... a lot of nodes
> $nodes | foreach {[System.Diagnostics.Process]::Start("ping.exe","$_") }
>
> Now, i need to log all the responses to a unique file for every node, so I
> try:
>
> $nodes | foreach {[System.Diagnostics.Process]::Start("ping.exe","$_ >
> $_.log 2>&1") }
>
> But it's not working. The problem, i think, is the redirection of the
> standard output and standard error.
> Thanks for your help.

Redirection via ">" is a feature of a shell (CMD, PowerShell) and not
ping.exe. Try this:

$nodes | foreach {[System.Diagnostics.Process]::Start("cmd.exe","/c ping.exe
$_ > ${_}.log 2>&1") }

--
Keith

> $nodes | foreach {[System.Diagnostics.Process]::Start("cmd.exe","/c
> ping.exe $_ > ${_}.log 2>&1") }
>
> Keith

this was exactly what i've been looking for... thanks a lot Keith !!!