There are VERY, VERY likely NO errors in the merge because gzip, zcat, etc., do a checksum.
A better verification if you honestly do not understand what compression does: gunzip -c is the same as zcat....
If compression had problems everyone would be doing diffs, and probably not using gzip, gunzip for anything.
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 need to compare 2 diff type of files and find out the duplicate after comparing each types of files:
Type 1 file name is like: file1.abc
(the extension abc could any 3 characters but I can narrow it down or hardcode for 10/15 combinations).
The other file is file1.bcd01abc (the extension... (2 Replies)
Hi all
diff file1 file 2
command will give us op of diff between two file. But it aslo give its position and sign "<" or ">". I dont want position and sign in op. Only diff of content should be come as op.
Kindly help me for this.
Regards
Jaydeep (1 Reply)
Hi,
I use the diff command to compare two files and append this output to a file. I would like to now not only produce the differences but be able to output the total number of changes made, the number of new files added and the number of files deleted, is there I can do this using the diff... (2 Replies)
Hello,
I am working with next-gen short-read sequence data, which we receive in 3 fastq files. These are arranged in 4-line groups for each read:
line1: read identifier, beginning, e.g., "@HWI-ST1342..."
line2: DNA sequence, for files 1 and 2, 101 characters, for file 3, 7 chars.
line3: "+"... (2 Replies)
I have a fastq file from small RNA sequencing with sequence lengths between 15 - 30. I wanted to filter sequence lengths between 21-25 and write to another fastq file. how can i do that? (4 Replies)
Hello,
I am trying to find the different files between multiple directories in Linux, here is a small assumption of what is inside the directories
dir1 dir2 dir3
1.txt 1.txt 1.txt
2.txt 3.txt 3.txt
5.txt 4.txt 5.txt
6.txt 7.txt 8.txt
I am using the following... (4 Replies)
Guys i have 3 files,
but i want to compare and diff only the 2nd column
path=`/home/whois/doms`
for i in `cat domain.tx`
do
whois $i| sed -n '/Registry Registrant ID:/,/Registrant Email:/p' > $path/$i.registrant
whois $i| sed -n '/Registry Admin ID:/,/Admin Email:/p' > $path/$i.admin... (10 Replies)
I have two files:
File_1:
@M04961:22:000000000-B5VGJ:1:1101:9280:7106 1:N:0:86
GGCATGAAAACATACAAACCGTCTTTCCAGAAATTGTTCCAAGTATCGGCAACAGCTTTATCAATACCATGAAAAATATCAACCACACCAGAAGCAGCAT
+
GGGGGGGGGGGGGGGGGCCGGGGGF,EDFFGEDFG,@DGGCGGEGGG7DCGGGF68CGFFFGGGG@CGDGFFDFEFEFF:30CGAFFDFEFF8CAF;;8F
... (3 Replies)
Discussion started by: Xterra
3 Replies
LEARN ABOUT CENTOS
algorithm::diffold
Algorithm::DiffOld(3) User Contributed Perl Documentation Algorithm::DiffOld(3)NAME
Algorithm::DiffOld - Compute `intelligent' differences between two files / lists but use the old (<=0.59) interface.
NOTE
This has been provided as part of the Algorithm::Diff package by Ned Konz. This particular module is ONLY for people who HAVE to have the
old interface, which uses a comparison function rather than a key generating function.
Because each of the lines in one array have to be compared with each of the lines in the other array, this does M*N comparisions. This can
be very slow. I clocked it at taking 18 times as long as the stock version of Algorithm::Diff for a 4000-line file. It will get worse
quadratically as array sizes increase.
SYNOPSIS
use Algorithm::DiffOld qw(diff LCS traverse_sequences);
@lcs = LCS( @seq1, @seq2, $comparison_function );
$lcsref = LCS( @seq1, @seq2, $comparison_function );
@diffs = diff( @seq1, @seq2, $comparison_function );
traverse_sequences( @seq1, @seq2,
{ MATCH => $callback,
DISCARD_A => $callback,
DISCARD_B => $callback,
},
$comparison_function );
COMPARISON FUNCTIONS
Each of the main routines should be passed a comparison function. If you aren't passing one in, use Algorithm::Diff instead.
These functions should return a true value when two items should compare as equal.
For instance,
@lcs = LCS( @seq1, @seq2, sub { my ($a, $b) = @_; $a eq $b } );
but if that is all you're doing with your comparison function, just use Algorithm::Diff and let it do this (this is its default).
Or:
sub someFunkyComparisonFunction
{
my ($a, $b) = @_;
$a =~ m{$b};
}
@diffs = diff( @lines, @patterns, &someFunkyComparisonFunction );
which would allow you to diff an array @lines which consists of text lines with an array @patterns which consists of regular expressions.
This is actually the reason I wrote this version -- there is no way to do this with a key generation function as in the stock
Algorithm::Diff.
perl v5.16.3 2006-07-31 Algorithm::DiffOld(3)