How to compare two flat files and get changed data

Shell Programming and Scripting
1

Hi,

I need to compare two flat files (yesterday & today's data) and get only the changed data from flat files. In flat file i dont have data column or anything its just a string data in flat file.Can any one please let me know the script

With Regds
Shashi

2

diff yesterdays.file todays.file

3

HI,

The diff command will list both the file content indicating where exactly the data are changed or there is a difference. By this data we need to format and getonly the changed data in second file, can you let me know how to do it

With regds
Shashi

4

diff yesterdays.file todays.file | grep "^>"