Comparing two one-line files and selecting what does not match
I have two files. One is consisting of one line, with data separated by spaces and each number appearing only once.
The other is consisting of one column and multiple lines which can have some numbers appearing more than once.
It looks something like this:
file 1:
file2:
(The files are a result of some other processing and scripts so there could be some extra spaces or tabs that I cannot easily influence/remove)
I would like to print the lines from file2 that do not have a match in file1. It is very important that in case there aren't any lines in file2 that do not have a match in file1 (i.e. when the file2 doesn't contain any numbers that aren't already in file1), I get a completely empty file, and not spaces or any other characters.
I have found some ways to do it when both files are columns, but not when one of them is a one line. When I tried transforming the one line file into a one column file, I got some unwanted spaces in the output.
Thank you!
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Please use CODE tags as required by forum rules!
Last edited by RudiC; 08-15-2018 at 07:17 PM..
Reason: Added CODE tags.
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