I'm trying to execute an existing script on a remote server and capture the output in a local file
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22-12-2019 - |
Question
I want to run this on multiple servers(nearly 40-50 servers) parallely
$Username = "user"
$Password = "Password"
$servers = get-content "c:\temp\servers.txt"
$sb = {c:\temp\PsExec.exe -h \\$server -u $Username -p $password cmd.exe /c "echo . | Powershell.exe -executionpolicy bypass -file c:\script.ps1" > "$env:userprofile\Desktop\output.txt"}
foreach($server in $servers)
{
start-job -ScriptBlock $sb
}
this code works fine if i remove start-job, but executes one after the other, which takes lot of time.
I cannot use PSsession or invoke-command, since it is restricted in our environment.
This code never exits. It stops at this position:
+ CategoryInfo : NotSpecified: (:String) [], RemoteException
+ FullyQualifiedErrorId : NativeCommandError
PsExec v1.98 - Execute processes remotely
Copyright (C) 2001-2010 Mark Russinovich
Sysinternals - www.sysinternals.com
Solution
To Start with you aren't passing any of your variables into the job. What you need is to use the $args variable within the ScriptBlock and then pass the variables you want with -ArgumentList.
$Password = "Password"
$servers = get-content "c:\temp\servers.txt"
$sb = {
c:\temp\PsExec.exe -h \\$args[0] -u $args[1] -p $args[2] cmd.exe /c "echo . | Powershell.exe -executionpolicy bypass -file c:\script.ps1" > "$args[3]\Desktop\output.txt"
}
foreach($server in $servers)
{
start-job -ScriptBlock $sb -ArgumentList $server,$Username,$password,$env:userprofile
}
I probably didn't need to pass the environment variable, but it seemed like you had a scoping problem with the variables.
Alternatively you could use a Param Block in the ScriptBlock to name your Variables, which essentially maps positionally the Arguments passed into the named variable.
$Password = "Password"
$servers = get-content "c:\temp\servers.txt"
$sb = {
Param ($Server,$UserName,$Password,$UserProfile)
c:\temp\PsExec.exe -h \\$Server -u $UserName -p $Password cmd.exe /c "echo . | Powershell.exe -executionpolicy bypass -file c:\script.ps1" > "$UserProfile\Desktop\output.txt"
}
foreach($server in $servers)
{
start-job -ScriptBlock $sb -ArgumentList $server,$Username,$password,$env:userprofile
}
I hope this helps. Cheers, Chris.
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