Compare 2 sorted files - Shell Programming and Scripting

varungupta · #1 01-21-2008

Hi all,

please give me the commands using which i can compare 2 sorted files and get the difference in third file, indiating where the difference is from either file1 or file2.

as:

File1 (Original file)

GARRY
JOHN
JULIE
SAM

---------------
File2

DEV
GARRY
JOHN
JOHNIEE
JULIE
RAMEE
SAM
SAMYEE
-------------------
OUTPUT in file3 should have :

DEV
JOHNIEE
RAMEE
SAMYEE

Using awk and diff/cmp commands.

dennis.jacob · #2 01-21-2008

Try this:

Code:

comm -13 file1 file2

Code:

diff file1 file2 | awk '/^>/{print $2 }'

varungupta · #3 01-21-2008

Quote:

Originally Posted by dennis.jacob

Try this:

Code:

comm -13 file1 file2

Code:

diff file1 file2 | awk '/^>/{print $2 }'

Could you please tell me why -13 is being used in comm command ?

ranjithpr · #4 01-22-2008

grep -x -v -f F1 F2

varungupta · #5 01-22-2008

Quote:

Originally Posted by ranjithpr

grep -x -v -f F1 F2

Hey,

thanks man, hope this'll work fine.

Varun.

dennis.jacob · #6 01-22-2008

Quote:

Originally Posted by varungupta

Could you please tell me why -13 is being used in comm command ?

-1 suppress lines unique to left file

-2 suppress lines unique to right file

-3 suppress lines that appear in both files

varungupta · #7 01-25-2008

Quote:

Originally Posted by ranjithpr

grep -x -v -f F1 F2

Hey,

I have attached 2 files in this mail, please find those, in which i am doing comparisions.
Contents of EAIDVBR1.txt are standard and Contents of EAIDQBR1.txt are mixed.
I want list of all strings from EAIDQBR1.txt that are not there in EAIDVBR1.

Please have a look and let me know. As i have tries "grep -x -v -f F1 F2" command on these files and its not working effectively.

Let me know asap.
Thanks
Varun

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