Python determines whether a string in a file exists in another file

Recently, the marketing department's colleagues asked me to help deal with a two files, to determine whether the content of a file exists in the B file, if there is the content of the B file, think of the next, the shell is very simple implementation, with Python how to achieve it? Here is the specific code:

Shell code:

#!/bin/bashfor line in ' cat/root/zy/audiolist.txt ' do files= ' Cat/root/zy/list.txt|grep "$line" |wc-l ' if [-N $  Files] then echo ' cat/root/zy/list.txt|grep ' $line ' >> shell-script.txt else echo ' file is not exist "Fidone

Shell script output input directly into file Shell-script.txt

python code:

#!/usr/bin/env pythonfobj=open ('/root/zy/python-secipt.txt ', ' rw+ ' ) With open ('/root/zy/audiolist.txt ', ' R ')  as f:     for line  In f:          with open ('/root/zy/list.txt ', ' R ')  as obj:                   for strs in obj.readlines ():                          if  Line.strip ()  in strs.strip ():                                fobj.write (Strs.strip () + "\ n") Fobj.close () 

The Python script directly outputs the file to Python-secipt.txt

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Python determines whether a string in a file exists in another file