CODEWITHSUNDEEP
javapowershell
Sebastian G.
Sebastian G.

Reputation: 636

ProcessBuilder removes " from the command in powershell

Short: I am trying to run a command in the ProcessBuilder:

public static String execute(String cmd) {
    System.out.println(cmd);
    ProcessBuilder builder = new ProcessBuilder("powershell.exe", cmd);
    StringBuilder fullStatus = new StringBuilder();
    String line = null;
    Process reg;
    builder.redirectErrorStream(true);
    try {
        reg = builder.start();
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(reg.getInputStream()));
        while((line = bufferedReader.readLine()) != null) {
          fullStatus.append(line).append("\n");
        }
        reg.destroy();
    } catch (IOException e1) {
        e1.printStackTrace();
    }
    return fullStatus.toString();
}

If i execute following command:

Get-WmiObject -Query " SELECT * FROM Win32_Printer WHERE Default=$true"

it ignores the " in my file.

Get-WmiObject : Es wurde kein Positionsparameter gefunden, der das Argument "*" akzeptiert. In Zeile:1 Zeichen:1 + Get-WmiObject -Query SELECT * FROM Win32_Printer WHERE Default=$true + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : InvalidArgument: (:) [Get-WmiObject], ParameterBindingException + FullyQualifiedErrorId : PositionalParameterNotFound,Microsoft.PowerShell.Commands.GetWmiObjectCommand

How can i fix this?

Upvotes: 2

Views: 609

Answers (1)

Maximilian Burszley
Maximilian Burszley

Reputation: 19684

It looks like your ProcessBuilder is removing the quotes from your cmd argument. You can work around this in two ways:

Escaping the quotes:

public static String execute(String cmd) {
    cmd = cmd.replace('"',"\\\"")
    ...

Calling the command with arguments that don't need quotes:

Get-WmiObject -Class Win32_Printer -Filter { Default = True }

Upvotes: 1

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