I needed to see if this list of email addresses were found in a logs file. So I had one file with a list of email addresses. Another file is a list emails sent. I needed to make sure that the emails were sent. Here’s a quick Python script I put together that does this:
import re import sys def searchInLogFile( FILE, query ): FILE.seek( 0, 0 ) for line in LogFile: logLine = line.replace("\n","").replace("\r","").rstrip().lstrip() if re.search( query, logLine, re.IGNORECASE | re.MULTILINE ): return True # This file has a list (\r\n delimited) email addresses. EmailListFile = open( "email-list-internal.txt", "r") # This is the log file which we'll use to see if email addresses are in here. LogFile = open( "POST20100201.log", "r" ) EmailFound =  EmailNotFound =  breakTime = 0 # 0 = does the whole list EmailsToSearchFor = 0 for emailLine in EmailListFile: email = emailLine.replace("\n","").replace("\r","").rstrip().lstrip() if ( searchInLogFile( LogFile, email ) ): print email, "was found" EmailFound.append( email ) else: print email, "not found" EmailNotFound.append( email ) if ( EmailsToSearchFor != 0 ): breakTime += 1 if ( breakTime == EmailsToSearchFor ): break; LogFile.close() EmailListFile.close() # Log results to a file. OutputFile = open( "output.log", "w" ) divider = "\n\n======== Found ========================================" print divider OutputFile.write( divider ) for i in EmailFound: print i OutputFile.write( "\n" + i ) divider = "\n\n======== Not Found ====================================" print divider OutputFile.write( divider ) for i in EmailNotFound: print i OutputFile.write( "\n" + i ) OutputFile.close()
Pretty straightforward. The script also writes a file called “output.log” which has a list of emails that were found (marked under “found”) and not found (marked under “not found”).