I need to compare 2 diff type of files and find out the duplicate after comparing each types of files:

Type 1 file name is like: file1.abc
(the extension abc could any 3 characters but I can narrow it down or hardcode for 10/15 combinations).

The other file is file1.bcd01abc (the extension bcd is constant, 2 digit (00 to 04) and last three character could be any 3 letters (I can narrow that last 3 charcaters to 10-15 combinations).

whenever the script finds a duplicate after coparing these two types of files, the output will indicate "duplicate found in file1.abc and and file1.bcd01abc and the value is xxxx".


Both of file format:
172.10.10.19<TAB>rou020i00sfg<TAB>descriptions

Thanks and this is not a homwork.