* the file or path.
*/
public int metaSave(String[] argv, int idx) throws IOException {
String pathname = argv[idx];
DistributedFileSystem dfs = getDFS();
dfs.metaSave(pathname);
System.out.println("Created metasave file " + pathname + " in the log " +
"directory of namenode " + dfs.getUri());
return 0;
}