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Re: Is it possible to return the line available in FILE1 but not FILE2 i
From: |
Charles Swiger |
Subject: |
Re: Is it possible to return the line available in FILE1 but not FILE2 in diff? |
Date: |
Mon, 12 Nov 2012 16:40:01 -0800 |
Hi--
On Nov 12, 2012, at 3:19 PM, Peng Yu wrote:
> I just want to return the line available in FILE1 but not FILE2 in
> diff. After I read the document, it seems that this is not possible.
> Could anybody confirm whether this is true? If so, is there an
> alternative tool that does this? Thanks!
Using diff will show removed lines with a "-"; otherwise, consider
using the comm utility since that might be closer to what you want...
% cat > FILE1
This
is
a
test
file.
% tail -4 FILE1 >! FILE2
% diff
-bdu FILE1 FILE2
--- FILE1 2012-11-12 16:37:45.000000000 -0800
+++ FILE2 2012-11-12 16:38:11.000000000 -0800
@@ -1,4 +1,3 @@
-This
is
a
test
% comm FILE1 FILE2
This
is
a
test
file.
Regards,
--
-Chuck