old_contents: # -*- coding: utf-8 -*-
  # Author : jeonghoonkang, https://github.com/jeonghoonkang
  
  from __future__ import print_function
  import subprocess
  import os
  import sys
  
  if __name__ == '__main__':
  
      print ("usage : python %s {IP_ADD} {PORT}, {} : user should input" %__file__)
      exit()
  
      if len(sys.argv) < 2:
          exit("[bye] you need to input args")
  
      arg1 = sys.argv[1]
      arg2 = sys.argv[2]
      arg3 = sys.argv[3]
  
      ip = arg1
      port = arg2
      id = arg3
      print ("... start running", " inputs are ", ip, port, id)
  
      print ("... key generating")
      os.system('ssh-keygen')
  
      print ("... entering copying security file")
      run_cmd = "cat ~/.ssh/id_rsa.pub"
      run_cmd += " | ssh -p %s %s@%s" %(port, id, ip)
      run_cmd += " 'cat>>/home/%s/.ssh/authorized_keys'" %id
      print (run_cmd)
      os.system(run_cmd)
  
      ''' 아래 코드는 동작을 안함. 확인 필요 '''
      #ret = subprocess.check_output(run_cmd)
      #print (ret)
  
new_contents: # -*- coding: utf-8 -*-
  # Author : jeonghoonkang, https://github.com/jeonghoonkang
  
  from __future__ import print_function
  import subprocess
  import os
  import sys
  
  if __name__ == '__main__':
  
      print ("usage : python %s {IP_ADD} {PORT} {id}, {} : user should input" %__file__)
      exit()
  
      if len(sys.argv) < 2:
          exit("[bye] you need to input args, ip / port / id")
  
      arg1 = sys.argv[1]
      arg2 = sys.argv[2]
      arg3 = sys.argv[3]
  
      ip = arg1
      port = arg2
      id = arg3
      print ("... start running", " inputs are ", ip, port, id)
  
      print ("... key generating")
      os.system('ssh-keygen')
  
      print ("... entering copying security file")
      run_cmd = "cat ~/.ssh/id_rsa.pub"
      run_cmd += " | ssh -p %s %s@%s" %(port, id, ip)
      run_cmd += " 'cat>>/home/%s/.ssh/authorized_keys'" %id
      print (run_cmd)
      os.system(run_cmd)
  
      ''' 아래 코드는 동작을 안함. 확인 필요 '''
      #ret = subprocess.check_output(run_cmd)
      #print (ret)
  
subject: Update catip.py