文本文件比较脚本

写个比较实用的脚本，将代码存为file_cmp.py，运行./file_cmp.py txt1 txt2,就可以得到txt1和txt2的不同了，也可和我一样设置为bash命令，就更方便了

#!/usr/bin/python

import sys

fp1 = open(sys.argv[1],'r')
fp2 = open(sys.argv[2],'r')
content1 = fp1.readlines()
content2 = fp2.readlines()
len1 = len(content1)
len2 = len(content2)
min_len = min(len1,len2)
for i in range(min_len):
    if content1[i] != content2[i]:
        print "file1 %d\t:%s" % (i+1,content1[i]),
        print "file2 %d\t:%s" % (i+1,content2[i]),
        
if len1 != len2:
    print "%d lines" % (min_len+1)