04-07-2010
Thank you so much. Suppose I wanted to list the line from the old file (the original data) along with what has changed in the second file, hwo can I do that?
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1. Shell Programming and Scripting
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)
Discussion started by: blt123
2 Replies
2. UNIX for Dummies Questions & Answers
Hi,
Does anybody know the cmd to compare two areas and print out the different files w/ path?
I tried cmp and diff and dircmp but with no luck.
Should I grep and print?
For example:
/aa/images/jan
..../images/feb
/bb/images/jan
..../images/feb
i want to print the compare,... (5 Replies)
Discussion started by: andylee80
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3. Shell Programming and Scripting
Hi,
i am new to perl scripting.. i am still learing it.. i am asked to write a perl script which should compare 2 coloums of 2 different files. if those 2 coloumn are same the script should store the both the lines in 2 diff files.
these are files,
file 1:
21767016 226112 char
19136520... (3 Replies)
Discussion started by: vasuki
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4. Shell Programming and Scripting
I have made several attempts to read two files of ip addresses and eliminate records from file1 that are in file2.
My latest attempt follows. Everything works except my file3 is exactly the same as file1 and it should not be.
# !/usr/bin/bash
#
# NoInterfaces
# Utility will create a file... (8 Replies)
Discussion started by: altamaha
8 Replies
5. Shell Programming and Scripting
Hi Everyone,
1.txt
00:01:01 asdf
00:33:33 1234
00:33:33 0987
00:33:33 12
00:33:33 444
2.txt
vvvv|ee
444|dd33|ee
dddd|ee
12|ee
3ciur|fdd
the output should be: (6 Replies)
Discussion started by: jimmy_y
6 Replies
6. Shell Programming and Scripting
Hi Friends Need your expertise.
Command to check the difference and compare 2 files and remove lines . example
File1 is master copy and File2 is a slave copy . whenever i change, add or delete a record in File1 it should update the same in slave copy . Can you guide me how can i accomplish... (3 Replies)
Discussion started by: ajayram_arya
3 Replies
7. Shell Programming and Scripting
I am having two csv files i need to compare these files and the output file should have the information of the differences at the field level.
For Example,
File 1:
A,B,C,D,E,F
1,2,3,4,5,6
File 2:
A,C,B,D,E,F
1,2,4,5,5,6
out put file: (12 Replies)
Discussion started by: karingulanagara
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8. Shell Programming and Scripting
I have two arrays and they look like this:
array=(`cat /local/mnt/*sys/*includes|grep -v NEW`)
array2=(`cat /tmp/*sys.z |grep -v NEW`)
I am trying to compare them but I need to use the diff -u command. I am not sure how to do this. I cannot just do diff -u ${array} ${array2}
I cannot... (4 Replies)
Discussion started by: newbie2010
4 Replies
9. Shell Programming and Scripting
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)
Discussion started by: kenshinhimura
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LEARN ABOUT MOJAVE
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 v5.18.2 2006-07-30 Algorithm::DiffOld(3)