filter data

deep.singh · #1 (**permalink**) 08-14-2005

Hi

I have two files and their names are donotcall.txt, filter_it.txt. I want output.txt file with all data that is in filter_it.txt file but not in donotcall.txt. Can anybody help me to write 1-2 lines unix code for this.

donotcall.txt contains following data. Each row represent phone numbers.
321,2020331
321,2020344
321,2020407
321,2020473
321,2020474
321,2020475
321,2020490
321,2020503
321,2020505
321,2020506
321,2020511

filter_it.txt contains following data
407,6285433
866,3433700
321,2020505
866,5225433
407,6540820
407,2659599
321,2020407

I want output.txt file with all data that is in filter_it.txt file but not in donotcall.txt. Can anybody help me to write 1-2 lines unix code for this.

eg.
407,6285433
866,3433700
321,2020505 <------ Remove it because it is present in rejected.txt
866,5225433
407,6540820
407,2659599
321,2020407 <------ Remove it because it is present in rejected.txt

Thanks
Deep

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