| #!/usr/bin/env python3 | |
| import sys | |
| if __name__ == '__main__': | |
| if len(sys.argv) != 2: | |
| print(sys.argv[0], 'output_file') | |
| sys.exit(1) | |
| ifile = sys.stdin.read() | |
| if ifile != 'This is a text only input file.\n': | |
| print('Malformed input') | |
| sys.exit(1) | |
| with open(sys.argv[1], 'w+') as f: | |
| f.write('This is a binary output file.') |