6 sys.stderr.write("Usage: %s [-i] from_re to_re file....\n" % sys.argv[0])
10 if sys.argv[1] == '-i':
11 search = re.compile(sys.argv[2], re.IGNORECASE)
15 search = re.compile(sys.argv[1])
19 from fileinput import FileInput
20 files = FileInput(sys.argv[start:], inplace=1)
23 line = search.sub(replace, line)
24 sys.stdout.write(line)