如何阅读包含特定字符串的最后修改文件？

Question

I want to find the last modified file that contains a string using python. I have many files in my directory so comparing dates is not appealing. I am looking for a way to search the file by modified data until I hit a file containing the string I want. Or if there is a better way to do this that would be great.

Answer 1

To search for the last modified file in the current directory that contains the string search_string , you can use this code:

files = os.listdir(".")
files.sort(key=os.path.getmtime, reverse=True)
for name in files:
    with open(name) as f:
        if search_string in f.read():
            print name
            break

This will first list all the files, sort them by modification time, newest first, and then iterates over the list of files to see if they contain search_string .