Jmeter - Execute .bash script on windows (using groovy), and output the result - jmeter

Question

Based on this query: Jmeter - Execute bash script using OS Process Sampler via Windows os
I was able to execute bash command on Windows using Os Process sampler.
Now I need to execute using JSR223 Sampler.
String playerToken = vars.get("playerToken");
String command = "C:/Windows/System32/bash.exe /c cd C:/app/docs/release/ && ./no_longer_duplicate.bash ${playerToken} 6565";
StringBuffer output = new StringBuffer();
Process p;
try {
p = Runtime.getRuntime().exec(command);
p.waitFor();
BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
String line = "";
while ((line = reader.readLine())!= null) {
output.append(line + "\n");
}
} catch (Exception e) {
e.printStackTrace();
}
log.warn(output.toString());
But I am not getting any output from the execution.
Any help is appreciated.

Answer 1

Where do you want this output?
If you want to have it as response data - add the next line to the end of your script:
SampleResult.setResponseData(output.toString(), 'UTF-8')
if you want to see it in jmeter.log file - add the next line to the end of your script:
log.info(output.toString())
if you want to see it in STDOUT - add the next line to the end of your script:
println(output.toString())
More information: Top 8 JMeter Java Classes You Should Be Using with Groovy

Answer 2

Although earlier I posted question using Runtime.getRuntime().exec this never worked for me,
what worked is using a different method and the help of processBuilder
String playerToken = vars.get("playerToken");
ProcessBuilder processBuilder = new ProcessBuilder("C:/Program Files/Git/bin/bash.exe", "-c", "cd C:/app/docs/release/ && ./no_longer_duplicate.bash ${playerToken} 6565");
try {
Process process = processBuilder.start();
StringBuilder output = new StringBuilder();
BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
String line;
while ((line = reader.readLine()) != null) {
output.append(line + "\n");
}
int exitVal = process.waitFor();
if (exitVal == 0) {
System.out.println("Success!");
System.out.println(output);
//log.warn(output.toString());
SampleResult.setResponseData(output.toString(), 'UTF-8')
} else {
//abnormal...
}
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
With this code, I was able to execute .bash script on windows, using 'JSR223 Sampler' and groovy, and output the result.