private boolean isInstalled() {
		String env = getenv(homeEnvName);
		String homePath = env == null ? "" : env + File.separator +  "bin" + File.separator;
		String checkCommand = homePath + installationCheckingCommand;
		List<String> result = runNative(checkCommand.split(" "), null);
		return !result.isEmpty();
	}
Check If specific program is installed.

@since 3.5.3
ngrinder-controller/src/main/java/org/ngrinder/starter/InstallationChecker.java