File comparison based on contents

Shell Programming and Scripting
1

Hi

I have 2 files
1.del
----

1,2,3,4,5
1,2,3,4,4
1,1,1,1,2

2.del
----

1,2,3,4,5
1,
1,2,3,4,4
1,1,1,1,2

I need to compare the above two files in unix, as in the output should only tell the difference in contents as I should get only the line
1 ( from 2.del) , rest all lines are present in the both files.
I tried by fetching line by line and comparing in the second file, but its taking a huge time. I have the file size in GB's
Please advise

2

if the files are in sorted order please use

comm

and

diff

commands . please go through the man page for more details.

1 Like
3

Thanks for the quick reply.
Can you explain a bit more if the files were in this condition
1.del
----

1,2,3,4,5
1,2,3,4,4
1,1,1,1,2

2.del
-----

1,2,3,4,5
1,
1,2,3,4,3
1,2,3,4,4
1,1,1,1,2

and i need only the discrepant rows like
1
1,2,3,4,3 ( The rest all contents are present in some where of the file's). Thanks in advance.

4

PLEASE use code tags as demanded by forum rules!

Why don't you do as i150371485 proposed: read the cited man pages and give it a shot on your sample files? I promise: you will find the discrepant rows.

5

Sorry abt the notations.
I will work on this ..