What's the simplest way to remove lines from one file matched with lines from another file? For example, if I have the following files:
file1.csv:
[email protected]
file2.csv:
1,[email protected],somehash1
2,[email protected],somehash2
3,[email protected],somehash3
As a result I'd like to have file3.csv:
1,[email protected],somehash1
3,[email protected],somehash3
What's the fastest way to solve this task? These files are a few GB in size.