python检索特定内容的文本文件实例
windows环境下python2.7
脚本指定一个参数作为要检索的字符串
例如: >find.py ./ hello
# coding=utf-8 import os import sys # 找到当前目录下的所有文本文件 def findFile(path): f = [] d = [] l = os.listdir(path) for x in l: if os.path.isfile(os.path.join(os.getcwd() + "\\", x)): f.append(x) else: d.append(x) return f, d # 返回文件和目录的列表 # print x, "\n", y # 统计一个文本内字符串的个数 def findstrCount(file, strToFind): count = 0 thefile = open(file, 'rb') while True: buffer = thefile.read() if not buffer: break count += buffer.count(strToFind) thefile.close() return count # 遍历文件列表中,包含特定字符串的文件 def findstr(file, str): # f = open(file, "r+") # if f.read().find(str) != -1: # s = os.getcwd() + "\\" + file # else: # s = "None" # f.close() i = 1 global s for line in open(file): # return is index of the str start position. if line.find(str) != -1: s = os.getcwd() + "\\" + file + "------>line:%d" % (i) print s i = i + 1 return s L = [] # 全局变量,存放找到的目标文件 def find(p, str): try: f, d = findFile(p) for x in f: Ret = findstr(x, str) if Ret: L.append(Ret) if d: for x in d: os.chdir(x) find("./", str) os.chdir('../') except Exception, e: print e finally: pass if __name__ == '__main__': s = 0 find(sys.argv[1], sys.argv[2])
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