通过ProcessBuilder运行linux命令

//String[] command = {"df", "-h", "/"}; 

//String[] command = {"df"}; 

//String[] command = {"ls"};

String[] command = {"ls","-s"} ;

StringBuilder cmdReturn = new StringBuilder();

ProcessBuilder processBuilder = new ProcessBuilder(command);

Process process = ProcessBuilder.start();

InputStream inputStream = process.getInputStream();

int c;

while ((c = inputStream.read()) != -1) {

cmdReturn.append((char)c);