Can you give me a awk script to compare files after sorting which should ignore spacing difference and case and the line which mismatches from file 2 with that of file 1 should be displayed one below the other?
Assuming you don't have spaces in the file names or other oddities not visible in your examples, try something like this.
This will print the results for file2.txt then file3.txt then file4.txt etc. If that is a problem then you can sort the output from awk (add | sort -k4 at the very end).
Sorting causes the lines with the same filenn.txt to be adjacent:
The LC_ALL is because the sort order in my locale is different from the default; you might need to add that, too.
Now we only need to check if filennn.txt is the same as on the previous line, and if so, if the row count is different; if so, we print both the previous line and this one. Then we take care to remember the file name, the row count, and the whole line so that the comparison can take place again when the next line comes in.
Quote:
Originally Posted by ragavhere
Will awk be able to compare files of size 20MB?
This reads one line at a time, so doesn't use more memory for bigger files. The sort will be a bottleneck, though, obviously.
Hello,
I want to compare two files. All records in file 2 that are not in file 1 should be output to file 3.
For example:
file 1
123
1234
123456
file 2
123
2345
23456
file 3 should have
2345
23456
I have looked at diff, bdiff, cmp, comm, diff3 without any luck! (2 Replies)
I have two CSV files and I would like to create a third CSV file containing the differences between the two.
I understand the diff command can be used to list differences between two files. My problem is that when I pipe the output into a third CSV file, the line numbers and other formatting... (3 Replies)
Hello is there a way to limit the number of lines output by the DIFF command?
I tried -C 200 ect and -c but it continues to print out the whole huge file.
Reason needed is i'm trying to do alot of DIFFs on a long list of files and would like to only get back an indicator which files are... (2 Replies)
I'm asking for explanation about the output of the diff format when i compare the two files f1 and f2:
root@host1 # cat f1
205226
205237
205250
205255
205262
205274
205307
205403
205464
205477
205500
205520
205626
205759
205766
205776 (2 Replies)
I have two files to compare, but diff output doesn't give me decent output I want.
The portion of the two files are shown below.
file 1)
Authorize <1>
Transaction Database Slave 3 <1>
CPM HTTP Proxy Server <1>
SSP (TDB Server) <1>
CPM Application Authorization <7>
CPM Script... (5 Replies)
hello everyone,
I am trying to compare two files and have the result in a new files. When I used diff I am getting the header, '<' and '>' in my result which I don't want to have it in my output file. :wall:
opt/sam/input: diff file1.txt file2.txt
1,20d0
< 16,ZA,
< ZJ,08,
< Z7,03,
Any... (1 Reply)
How to get diff to not print the chevrons and the dashes? In this case the differences are all single line differences.
Also the first few lines don't matter. How to get the output to always exclude the first few lines? Thanks! (1 Reply)
Hi,
I wasn't sure whether to post this in the dummies or expert section, here's what I'm trying to do, but I suspect I'm missing the boat and should perhaps be using some of diff's builtin output functionality.
diff -yb --suppress-common-lines file1.js file2.js >> ~/results.txt
When I... (5 Replies)
I am running diff between two directories dir1 and dir2.
diff --exclude --recursive --brief -b dir1 dir2
The output of the above command is
Files dir1/java/abc/bcd/abc9991.java and dir2/java/abc/bcd/abc9991.java differ
Files dir1/java/abc/bcd/abc9933.java and... (11 Replies)
Discussion started by: gaurav99
11 Replies
LEARN ABOUT DEBIAN
text::patch
Patch(3pm) User Contributed Perl Documentation Patch(3pm)NAME
Text::Patch - Patches text with given patch
SYNOPSIS
use Text::Patch;
$output = patch( $source, $diff, STYLE => "Unified" );
use Text::Diff;
$src = ...
$dst = ...
$diff = diff( $src, $dst, { STYLE => 'Unified' } );
$out = patch( $src, $diff, { STYLE => 'Unified' } );
print "Patch successful" if $out eq $dst;
DESCRIPTION
Text::Patch combines source text with given diff (difference) data. Diff data is produced by Text::Diff module or by the standard diff
utility (man diff, see -u option).
patch( $source, $diff, options... )
First argument is source (original) text. Second is the diff data. Third argument can be either hash reference with options or all the
rest arguments will be considered patch options:
$output = patch( $source, $diff, STYLE => "Unified", ... );
$output = patch( $source, $diff, { STYLE => "Unified", ... } );
Options are:
STYLE => 'Unified'
STYLE can be "Unified", "Context" or "OldStyle".
The 'Unified' diff format looks like this:
@@ -1,7 +1,6 @@
-The Way that can be told of is not the eternal Way;
-The name that can be named is not the eternal name.
The Nameless is the origin of Heaven and Earth;
-The Named is the mother of all things.
+The named is the mother of all things.
+
Therefore let there always be non-being,
so we may see their subtlety,
And let there always be being,
@@ -9,3 +8,6 @@
The two are the same,
But after they are produced,
they have different names.
+They both may be called deep and profound.
+Deeper and more profound,
+The door of all subtleties!
TODO
Interfaces with files, arrays, etc.
AUTHOR
Vladi Belperchinov-Shabanski "Cade"
<cade@biscom.net> <cade@datamax.bg> <cade@cpan.org>
http://cade.datamax.bg
VERSION
$Id: Patch.pm,v 1.6 2007/04/07 19:57:41 cade Exp $
perl v5.10.1 2010-10-04 Patch(3pm)