@CliCommand(value = { PREFIX + "info" }, help = "Returns basic info about the Hadoop configuration")
	public String info() {
		StringBuilder sb = new StringBuilder();
		sb.append("Hadoop [");
		sb.append(VersionInfo.getVersion());
		sb.append(" rev.");
		sb.append(VersionInfo.getRevision());
		sb.append("]");

		sb.append("[fs=");
		String fs = hadoopConfiguration.get("fs.defaultFS");
		if (fs != null && fs.length() > 0) {
			sb.append(fs);
		}
		sb.append("]");

		// TODO: potentially add a check to see whether HDFS is running
		return sb.toString();
	}
Command for configuring the global Hadoop {@link Configuration} object used by other components. Modeled after
{@link GenericOptionsParser} (for usability reasons).

@author Costin Leau
spring-xd-shell/src/main/java/org/springframework/xd/shell/hadoop/ConfigurationCommands.java