code: def mv(src, dest, hadoop_bin=None, fs_name=None, fs_ugi=None):
      """hadoop move"""
      hadoop_bin, fs_name, fs_ugi = parse_account(
          hadoop_bin, fs_name, fs_ugi
      )
      src = check_hadoop_path(src, hadoop_bin, fs_name, fs_ugi)
      dest = check_hadoop_path(dest, hadoop_bin, fs_name, fs_ugi)
      if exists(dest):
          rm(dest)
  
      cmd = make_base_cmd(hadoop_bin, fs_name, fs_ugi)
      cmd += " -mv %s %s" % (src, dest)
      cmd += " 2>%s" % ERR_LOG
      ret = os.system(cmd)
      return ret
  
imports: import os
  import sys
  import json
  import time
  import math
  import collections
  import numpy
label_desc: Use image node_id 12 for calling a global function with example usage: mv(src, dest, hadoop_bin, fs_name, fs_ugi) and returns: ret