compare two files

Shell Programming and Scripting
1

Hi all

I have seen many topics on file comparision. However, hardly any one match my problem.

I have two text files A.txt and B.txt . In each files, there are texts line by line. I want to compare these lines and print the lines to a third file which are not common in both the files. The lines may not be ended by fullstop (.) since these may be subsentences.

Any help is appreciated.

2

man cmp

3

or man comm

4

or man diff

5

/usr/xpg4/bin/grep -v -f A.txt B.txt > C.txt
Source in russian

6

I know a nice tool : diff3
It has more feature than diff and could help you.

7

Hi.

This is a useful utility compared to comm because there is no requirement for sorting.

The elimination of lines ending in full-stop may be done after the combine or as a preliminary step, say with a sed command like:

sed '/\.$/d'

cheers, drl