Capturing multiline process output ?

Question

Hello all. I am writting a few methods that can execute a UNIX command
or script and then grab standard output. However, when I try to capture
the output I am only able to get the first line ? Here is a code snippet
private java.lang.Process shellProcess = null;
public void RunShellCommand( String command ) throws IOException
  try
    if( command != null )
      String[] kshCommand = { "/bin/ksh", "-c", command };
      /* Use the runtime exec() method to start the command. */
      shellProcess = java.lang.Runtime.getRuntime().exec(kshCommand);
  catch( IOException ioe )
    throw( ioe );
public String getShellCommandOutput() throws IOException
   String readStr = null;
   if( shellProcess != null )
     try
       /* Create a buffered reader. */
       BufferedReader stdInput = new BufferedReader( new InutStreamReader( shellProcess.getInputStream() ));
       readStr = stdInput.readLine();
     catch( IOException ioe )
       throw( ioe );
   return( readStr );
}These methods are called from a GUI like this:
myClass.RunShellCommad( "ls -l" );
String out;
while( (out = myClass.getShellCommandOutput()) != null)
  /* Stuff ouput into a JTextArea */
}Does anyone know why I can only get one line of output. Thanks.

Answer 1

you r reading the output using this command
readStr = stdInput.readLine();
well you r calling stdInput.readline() only once
do something like this
while (readStr != null)
readStr = stdInput.readLine();
}