Java Utililty Methods Shell Command

List of utility methods to do Shell Command

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Description

The list of methods to do Shell Command are organized into topic(s).

Method

StringgetJavaVersion(String command)
Retrieves the version of the java vm indicated by the command string. 
String run_command = "'" + command + "' -version";
System.out.println(run_command);
Process p;
String[] args = { command, "-version" };
p = Runtime.getRuntime().exec(args);
p.waitFor();
BufferedReader reader = new BufferedReader(new InputStreamReader(p.getErrorStream()));
String line = reader.readLine();
...
intrunCommand(final ProcessBuilder command)
run Command 
final Process process = command.start();
new Thread(new Runnable() {
    @Override
    public void run() {
        try {
            final BufferedReader reader = new BufferedReader(
                    new InputStreamReader(process.getInputStream()));
            try {
...
StringrunCommand(String cmd)
Run the specified command and return the output as a string. 
try {
    Process p = Runtime.getRuntime().exec(cmd);
    BufferedReader cin = new BufferedReader(new InputStreamReader(p.getInputStream()));
    StringBuilder buffer = new StringBuilder();
    String line = "";
    while (line != null) {
        buffer.append(line);
        line = cin.readLine();
...
voidrunCommand(String cmd)
Calls runCommand/2 assuming that wait=true. 
runCommand(cmd, true);
InputStreamrunCommand(String command)
run Command 
System.out.println(command);
Process p = Runtime.getRuntime().exec(new String[] { "bash", "-c", command });
InputStream inputStream = p.getInputStream();
return inputStream;
StringrunCommand(String command)
run Command 
Process p = Runtime.getRuntime().exec(command);
p.waitFor();
BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
String line = "";
StringBuilder sb = new StringBuilder();
while ((line = reader.readLine()) != null)
    sb.append(line + "\n");
return sb.toString();
...
booleanrunCommand(String command, String args, String file)
run Command 
logOut("Trying to exec:\n   cmd = " + command + "\n   args = " + args + "\n   %s = " + file);
String[] parts = prepareCommand(command, args, file);
try {
    Process p = Runtime.getRuntime().exec(parts);
    if (p == null)
        return false;
    try {
        int retval = p.exitValue();
...
voidrunCommand(String command[])
run Command 
new ProcessBuilder(command).start();
StringrunCommand(String program, ArrayList args)
Helper function to run a system command and return the stdout / stderr as a string 
ArrayList<String> command = new ArrayList<String>();
command.add(program);
if (args != null) {
    for (String arg : args) {
        command.add(arg);
System.out.println("RUNNING COMMAND :" + join(command, " "));
...
voidrunCommand(String s)
run Command 
try {
    Runtime.getRuntime().exec(s);
} catch (IOException e) {
    e.printStackTrace();