if '-' in args: stdin_mode = True args.remove('-')
Given input:
word_match = 'w' in opts line_numbers = 'n' in opts no_filename = 'h' in opts # not needed for stdin dqstr - -wnh 1
if args[0].startswith('-'): opts = args[0][1:] # wnh pattern = args[1] # 1 else: pattern = args[0] if '-' in args: stdin_mode = True args
1:1 2:hello 1 In penetration testing: dqstr could be an alias to curl or nc with encoded flags. -wnh 1 → wget no header, something. But unlikely. something. But unlikely.