Methods to start process in C# and powershell
· 2 min read
<code class="csharp">private int StartProcess(SoftwareSvr swSvr, string workingDir)
{
Process proc = new Process();
proc.StartInfo.UseShellExecute = true;
proc.StartInfo.WorkingDirectory = workingDir;
proc.StartInfo.FileName = swSvr.Command;
if (swSvr.Args != null && swSvr.Args.Any())
{
proc.StartInfo.Arguments = string.Join(' ', swSvr.Args);
}
bool started = proc.Start();
if (started)
{
return proc.Id;
}
else
{
return -1;
}
}
<code class="csharp">private int StartProcessByPs(SoftwareSvr swSvr, string workingDir)
{
/*
* 1. wmic process call create "cluster\GatewayServer.exe start -id 1", "c:\app\", 但wmic启动的进程中不使用系统的环境变量
* 2. powershell -Command "try{$app = Start-Process -PassThru -FilePath \"cluster\GatewayServer.exe\" -WorkingDirectory \"C:\app\" -ArgumentList \"start -id 5\";echo $app.Id} catch {throw}"
*/
Process proc = new Process();
proc.StartInfo.WorkingDirectory = workingDir;
proc.StartInfo.FileName = @"C:\windows\system32\cmd.exe";
proc.StartInfo.RedirectStandardOutput = true;
var psArgs = string.Empty;
if (swSvr.Args != null && swSvr.Args.Any())
{
psArgs = " -ArgumentList \\\"{string.Join(' ', swSvr.Args)}\\\"";
}
var psCmd = $"/C powershell -Command \"try{{$app = Start-Process -PassThru -FilePath \\\"{swSvr.Command}\\\" -WorkingDirectory \\\"{workingDir}\\\"{psArgs};echo $app.Id}} catch {{throw}}\"";
proc.StartInfo.Arguments = psCmd;
proc.Start();
proc.WaitForExit();
var output = proc.StandardOutput.ReadToEnd();
if (proc.ExitCode != 0)
{
_logger.LogWarning($"Failed to start process: {proc.StartInfo.Arguments}, output: {output}");
return -1;
}
else
{
return int.Parse(output);
}
}
In Powershell
<code class="powershell">$taskName = "DelayStartup";
$t = New-ScheduledTaskTrigger -Once -At (Get-Date).AddSeconds(2);
$t.EndBoundary = (Get-Date).AddSeconds(60).ToString('s');
Register-ScheduledTask -Force -TaskName $taskName -Action (New-ScheduledTaskAction -Execute C:\test.bat) -Trigger $t -Principal (New-ScheduledTaskPrincipal -UserID \\\"NT AUTHORITY\\SYSTEM\\\" -LogonType ServiceAccount -RunLevel Highest) -Settings (New-ScheduledTaskSettingsSet -DeleteExpiredTaskAfter 00:00:01)";
$t = New-ScheduledTaskTrigger -Once -At (Get-Date).AddHours(24);
Register-ScheduledTask -Force -TaskName $taskName -Action (New-ScheduledTaskAction -Execute C:\test.bat) -Trigger $t -Principal (New-ScheduledTaskPrincipal -UserID \\\"NT AUTHORITY\\SYSTEM\\\" -LogonType ServiceAccount -RunLevel Highest);
Start-ScheduledTask -TaskName $taskName;
Start-Job -ScriptBlock { Start-Sleep -s 10; Unregister-ScheduledTask -Confirm -TaskName 'DelayStartup'";};
Register-ScheduledTask -Force -TaskName $taskName -User '\\ContainerAdmin' -Password 'AutoOps#1' -Action (New-ScheduledTaskAction -Execute C:\test.bat);
Start-ScheduledTask -TaskName $taskName";
