Find diff bet 2 files and store result in another file

Shell Programming and Scripting
1

Hi
I want to compare 2 files. The files have the same amount of rows and columns. So each line must be compare against the other and if one differs from the other, the result of both must be stored in a seperate file.
I am doing this in awk.

Here is my file1:

 
Blocks Reserved,CELL,1A,,,,AGBLK,5,5,1,CELL,1A,,,,ERICSSON,GSM,07B
Blocks Reserved,CELL,1A,,,,AGBLK,5,5,1,CELL,1A,,,,ERICSSON,GSM,07B
Blocks Reserved,CELL,1B,,,,AGBLK,2,2,1,CELL,1B,,,,ERICSSON,GSM,07B
Blocks Reserved,CELL,1B,,,,AGBLK,2,2,1,CELL,1B,,,,ERICSSON,GSM,07B

Here is my file 2:

 
Blocks Reserved,CELL,1A,,,,AGBLK,0,0,1,CELL,1A,,,,ERICSSON,GSM,07B
Blocks Reserved,CELL,1A,,,,AGBLK,0,0,1,CELL,1A,,,,ERICSSON,GSM,07B
Blocks Reserved,CELL,1B,,,,AGBLK,2,2,1,CELL,1B,,,,ERICSSON,GSM,07B
Blocks Reserved,CELL,1B,,,,AGBLK,2,2,1,CELL,1B,,,,ERICSSON,GSM,07B

Duplicate data may be ignored, so resultant file is:

Blocks Reserved,CELL,1A,,,,AGBLK,5,5,1,CELL,1A,,,,ERICSSON,GSM,07B
Blocks Reserved,CELL,1A,,,,AGBLK,0,0,1,CELL,1A,,,,ERICSSON,GSM,07B

Here is my script:

 
awk -F',' -v file1="$1" -v file2="$2" '{print;}1' OFS="," diff $1 $2 > resultfile.csv

Can you help me please.

2

Did not get any idea to do it in a short way,

But this will be fine:

 
diff  File1 File2 | awk '/Blocks/' | sed -e 's/<//g' -e 's/>//g' | sort -u
3

Thank you. This works great,