I have a large file composed of text fields separated by semicolons in the form of a large table. It has been sorted. I have a smaller file composed of the same text fields. At some point, someone concatenated this file with others and then did a sort to form the large file described above. I would like to subtract the lines of the small file from the big one (i.e. for each line in the small file, if a matching string exists in the big file, delete that line in the big file).
The file looks roughly like this
GenericClass1; 1; 2; NA; 3; 4; GenericClass1; 5; 6; NA; 7; 8; GenericClass2; 1; 5; NA; 3; 8; GenericClass2; 2; 6; NA; 4; 1;
Is there a quick classy way to do this or do I have to use awk?