code: def main():
      
      if '-h' in sys.argv:
          print(main.__doc__)
          sys.exit()
      file=sys.argv[1]
      f=open(file,'r')
      Input=f.readlines()
      f.close()
      out=open(file,'w')
      for line in Input:
          out.write(line)
      out.close()
docs: NAME
          convert2unix.py
      
      DESCRIPTION
        converts mac or dos formatted file to unix file in place
      
      SYNTAX
          convert2unix.py FILE 
      
      OPTIONS
          -h prints help and quits