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intrahype.net
python
bash
powershell
1# This script will find differences between two csv files text strings
2# and write any missing lines to a new file
3
4#import csv module
5import csv
6
7# use open method to instantiate both files
8# replace filenames with local files, files must be in same folder as script file
9with open('<filename>', 'r') as f1, open('<filename2>', 'r') as f2:
10 f1_lines = f1.readlines()
11 f2_lines = f2.readlines()
12
13# use open method to iterate through both files looking for matches
14# write non-matches to new file
15with open('<outputfilename>', 'w') as difference_file:
16 for line in f1_lines:
17 if line not in f2_lines:
18 difference_file.write(line)