Running multiple commands in one process

2009-04-03

Question

_{Friday, April 3, 2009 11:12 PM | 2 votes}

Hi all
I understand running the command shell as a process, How would i run multiple arguments in that one process? For example, here's a process to do a netstat.

Dim pNet As New Process
        pNet.StartInfo.FileName = "cmd.exe"
        pNet.StartInfo.Arguments = " /k netstat -r "
        Try
            pNet.Start()
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        End Try

How would I do that with the following commands? I'd like to click one button and have these all run one after the other.

MKDIR Logs
Dcdiag.exe /e > .\Logs\dcdiag.txt
Netdiag.exe /v > .\Logs\Netdiag.txt
Repadmin /showreps > .\Logs\rep_partners.txt
Repadmin /replsum /errorsonly > .\Logs\repadmin_err.txt

All replies (9)

_{Saturday, April 4, 2009 12:31 AM ✅Answered | 2 votes}

Using p1 As New Process
    p1.StartInfo.FileName = "cmd.exe"
    p1.StartInfo.Arguments = "/k ..."
    p1.WaitForExit()
End Using

Using p2 As New Process
    p2.StartInfo.FileName = "cmd.exe"
    p2.StartInfo.Arguments = "/k ..."
    p2.WaitForExit()
End Using

Using p3 As New Process
    p3.StartInfo.FileName = "cmd.exe"
    p3.StartInfo.Arguments = "/k ..."
    p3.WaitForExit()
End Using

'Etc.

_{Friday, April 3, 2009 11:21 PM | 1 vote}

cmd.exe understands the && operator to specify multiple commands so that the second is executed if the first succeeds (errorlevel 0). The || operator can be used if you want the execution to happen unconditionally (i.e., without looking at the error number)

However, I would not bother. Why not just call Process.Start for each one? You can use the Process.WaitForExit method if you do not want them to execute concurrently.

_{Friday, April 3, 2009 11:28 PM | 1 vote}

Thanks BC,
Can you give me an example? Something like this?

Dim pMulti As New Process
        pMulti.StartInfo.FileName = "cmd.exe"
        pMulti.StartInfo.Arguments = " /k MKDIR Logs"
        pMulti.StartInfo.Arguments = "Dcdiag.exe /e > .\Logs\dcdiag.txt"
        pMulti.StartInfo.Arguments = "Netdiag.exe /v > .\Logs\Netdiag.txt"
        pMulti.StartInfo.Arguments = "Repadmin /showreps > .\Logs\rep_partners.txt"
        pMulti.StartInfo.Arguments = "Repadmin /replsum /errorsonly > .\Logs\repadmin_err.txt"""
        pMulti.Start()

_{Saturday, April 4, 2009 1:03 AM | 1 vote}

Thanks BC, I get this error "no process is associated with this object." when I run

Using p1 As New Process
            p1.StartInfo.FileName = "cmd.exe"
            p1.StartInfo.Arguments = " /k MKDIR .\Logs"
            p1.WaitForExit()
End Using

_{Saturday, April 4, 2009 1:05 AM | 1 vote}

Thanks BC, I get the error "no process is associated with this object" on the waitforexit when i run the code below.

        Using p1 As New Process
            p1.StartInfo.FileName = "cmd.exe"
            p1.StartInfo.Arguments = " /k MKDIR .\Logs"
            p1.WaitForExit()
        End Using

_{Saturday, April 4, 2009 1:29 AM | 1 vote}

Ok, actually I've done this and it seems to work. How would I get the cmd window to close after the command runs?

        Using p1 As New Process
            p1.StartInfo.FileName = "cmd.exe"
            p1.StartInfo.Arguments = " /k MKDIR Logs"
            Try
                p1.Start()
            Catch ex As Exception
                MessageBox.Show(ex.Message)
            End Try
            p1.WaitForExit()
        End Using

        Using p2 As New Process
            p2.StartInfo.FileName = "cmd.exe"
            p2.StartInfo.Arguments = " /k Dcdiag.exe /e > .\Logs\dcdiag.txt"
            Try
                p2.Start()
            Catch ex As Exception
                MessageBox.Show(ex.Message)
            End Try
            p2.WaitForExit()
        End Using

        Using p3 As New Process
            p3.StartInfo.FileName = "cmd.exe"
            p3.StartInfo.Arguments = " /k Netdiag.exe /v > .\Logs\Netdiag.txt"
            Try
                p3.Start()
            Catch ex As Exception
                MessageBox.Show(ex.Message)
            End Try
            p3.WaitForExit()
        End Using

        Using p4 As New Process
            p4.StartInfo.FileName = "cmd.exe"
            p4.StartInfo.Arguments = " /k Repadmin /showreps > .\Logs\rep_partners.txt"
            Try
                p4.Start()
            Catch ex As Exception
                MessageBox.Show(ex.Message)
            End Try
            p4.WaitForExit()
        End Using

        Using p5 As New Process
            p5.StartInfo.FileName = "cmd.exe"
            p5.StartInfo.Arguments = " /k Repadmin /replsum /errorsonly > .\Logs\repadmin_err.txt"
            Try
                p5.Start()
            Catch ex As Exception
                MessageBox.Show(ex.Message)
            End Try
            p5.WaitForExit()
        End Using
    End Sub

_{Wednesday, May 20, 2009 2:25 PM}

Using /c in place of /k terminates the window.

_{Wednesday, January 10, 2018 4:15 PM}

Hello,

Jason's answer solves it by opening 3 cmd process.. Is there a way to run it using single cmd process.. what if the command lines are interrelated..

I am facing one such issue and dont want to use Batch or a ps1 because that can be opened by anyone who has access -- security issue..

Mine is something like below:

if (Test-Path D:\Collect-ServerInfo-1.0.1\PClass.txt) 
{
  Remove-Item D:\Collect-ServerInfo-1.0.1\PClass.txt
  add-item D:\Collect-ServerInfo-1.0.1\PClass.key
}
if (Test-Path D:\Collect-ServerInfo-1.0.1\UClass.txt) 
{
  Remove-Item D:\Collect-ServerInfo-1.0.1\UClass.txt
  add-item D:\Collect-ServerInfo-1.0.1\UClass.txt
}
$username = Set-Content "D:\Collect-ServerInfo-1.0.1\UClass.txt"

regards,

Jaideep

regards,

Jaideep

_{Wednesday, January 10, 2018 4:32 PM}

Don't hack some other ones thread.

Create your own one by asking a new question.

It is free

Success Cor

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Running multiple commands in one process

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