old_contents: #!/usr/bin/python
  """
  rpiMonitor.py : monitoring on raspberry pi
  """
  
  import os
  
  ## function disk_usage : return disk usage info at numbers
  # all : total disk usage at list
  # free : free disk usage at int
  # used : used disk usage at int
  def disk_usage(path, diskUsage='all'):
      st = os.statvfs(path)
      free = st.f_bavail * st.f_frsize
      total = st.f_blocks * st.f_frsize
      used = (st.f_blocks - st.f_bfree) * st.f_frsize
  
      if diskUsage == 'free':
          diskUsage = free
      elif diskUsage == 'total':
          diskUsage = total
      elif diskUsage == 'used':
          diskUsage = used
      elif diskUsage == 'all':
          diskUsage = free, total, used
      else:
          diskUsage = None
  
      return diskUsage
  
  ## funtion get_hostname : return raspberry pi hostname info 
  def get_hostname():
      p = os.popen("hostname")
      return p.read()
  
  ## function get_df : return disk usage info
  def get_df(valueflag=False):
      p = os.popen("df -h")
      return p.read()
  
  ## funtion get_free : return memory usage info
  def get_free(valueflag=False):
      if not  valueflag:
          p = os.popen("free")
      else:
          p = os.popen("free|grep Mem|grep -v grep|awk '{ print $4 }'")
      return p.read()
  
  ## function get_uptime : return working time of raspberry pi
  def get_uptime():
      p = os.popen("uptime")
      return p.read()
  
  ## function get_ifconfig : return network interfaces info
  def get_ifconfig(valueflag=False):
      p = os.popen("ifconfig")
      return p.read()
  
  ## function get_stalk_status : return stalk service info
  def get_stalk_status():
      p = os.popen("stalk status")
      return p.read()
  
  def get_proc_cpu(proc):
      str_proc ="ps -e -o pcpu,cmd --no-headers|grep %s|grep -v grep|awk '{sum += $1} END {print sum}'" % proc
      p = os.popen(str_proc)
      try:
          return float(p.read())
      except ValueError:
          return None
  
  def get_proc_mem(proc):
      str_proc ="ps -e -o pmem,cmd --no-headers|grep %s|grep -v grep|awk '{sum += $1} END {print sum}'" % proc
      p = os.popen(str_proc)
      try:
          return float(p.read())
      except ValueError:
          return None
  
  #print disk_usage('/', 'free')
  #print get_df()
  #print get_free()
  #print get_uptime()
  #print get_hostname()
  #print get_proc_cpu("python")
  #print get_proc_mem("python")
  
new_contents: # -*- coding: utf-8 -*-
  #!/usr/bin/python
  """
  rpiMonitor.py : monitoring on raspberry pi
  """
  
  import os
  
  ## function disk_usage : return disk usage info at numbers
  # all : total disk usage at list
  # free : free disk usage at int
  # used : used disk usage at int
  def disk_usage(path, diskUsage='all'):
      st = os.statvfs(path)
      free = st.f_bavail * st.f_frsize
      total = st.f_blocks * st.f_frsize
      used = (st.f_blocks - st.f_bfree) * st.f_frsize
  
      if diskUsage == 'free':
          diskUsage = free
      elif diskUsage == 'total':
          diskUsage = total
      elif diskUsage == 'used':
          diskUsage = used
      elif diskUsage == 'all':
          diskUsage = free, total, used
      else:
          diskUsage = None
  
      return diskUsage
  
  ## funtion get_hostname : return raspberry pi hostname info 
  def get_hostname():
      p = os.popen("hostname")
      return p.read()
  
  ## function get_df : return disk usage info
  def get_df(valueflag=False):
      p = os.popen("df -h")
      return p.read()
  
  ## funtion get_free : return memory usage info
  def get_free(valueflag=False):
      if not  valueflag:
          p = os.popen("free")
      else:
          p = os.popen("free|grep Mem|grep -v grep|awk '{ print $4 }'")
      return p.read()
  
  ## function get_uptime : return working time of raspberry pi
  def get_uptime():
      p = os.popen("uptime")
      return p.read()
  
  ## function get_ifconfig : return network interfaces info
  def get_ifconfig(valueflag=False):
      p = os.popen("ifconfig")
      return p.read()
  
  ## function get_stalk_status : return stalk service info
  def get_stalk_status():
      p = os.popen("stalk status")
      return p.read()
  
  def get_proc_cpu(proc):
      str_proc ="ps -e -o pcpu,cmd --no-headers|grep %s|grep -v grep|awk '{sum += $1} END {print sum}'" % proc
      p = os.popen(str_proc)
      try:
          return float(p.read())
      except ValueError:
          return None
  
  def get_proc_mem(proc):
      str_proc ="ps -e -o pmem,cmd --no-headers|grep %s|grep -v grep|awk '{sum += $1} END {print sum}'" % proc
      p = os.popen(str_proc)
      try:
          return float(p.read())
      except ValueError:
          return None
  
  #print disk_usage('/', 'free')
  #print get_df()
  #print get_free()
  #print get_uptime()
  #print get_hostname()
  #print get_proc_cpu("python")
  #print get_proc_mem("python")
  
subject: Update rpiMonitor.py