I want to compare two files with same number of rows and columns with records in same order.Just want to highlight the differences in the column values if any.file A:1,kolkata,19,ab2,delhi,89,cd3,bangalore,56,effile B:1,kolkata,21,ab2,mumbai,89,gh3,bangalore,11,klConsidering column 1 as primary key, we have differences in other columns.I want to highlight those differences.Output format may be (not sure):record_number,  columns_with_diff1               32               2,43               3,4Can diff or comm solve my problem?If yes then what would be the exact command?
Comparing files in unix columnwise
files;diff;comm