CommandShell shell = null;
int ret = 1;
try {
shell = (CommandShell) ShellUtils.getShellManager().getCurrentShell();
long start = System.currentTimeMillis();
ret = shell.runCommand(sb.toString());
long end = System.currentTimeMillis();
out.format(fmt_diff, getRuntime((int) (end - start)));
} catch (ShellException ex) {
throw ex;
} finally {