<Jafet> sed -i "2 s#.*#import random; w=[l.split() for l in open(\'/dev/stdin\').read().split(\'\\n\')]; r=[4,7,8,9,2,13,6]; print \'\\n\'.join((lambda s: \' \'.join(chr(3) + str(r[(i+s)%len(r)]) + l[i] for i in range(len(l)))(random.randrange(0, len(r))))#" $(which rainwords)

2012-01-01.txt:01:38:28: <elliott> @time lambdabot 
2012-04-06.txt:19:17:18: <itidus20> @time lambdabot
2012-04-29.txt:05:13:36: <shubshub> @time lambdabot
2012-04-29.txt:05:14:28: <itidus20> `pastelog @time lambdabot