Easiest way to cross-reference a CSV file with a text file for common strings

Question

I have a list of strings in a CSV file, and another text file that I would like to search for these strings. The CSV file has just the strings that I am interested in, but the t

Answer 1

I would use Python for this. To print the matching lines, you could do this:

import csv
with open("strings.csv") as csvfile: 
    reader = csv.reader(csvfile)
    searchstrings = {row[0] for row in reader}   # Construct a set of keywords
with open("text.txt") as txtfile:
    for number, line in enumerate(txtfile):
        for needle in searchstrings:
            if needle in line: 
                print("Line {0}: {1}".format(number, line.strip()))
                break   # only necessary if there are several matches per line