Dears,
I have a list as follows,
2
4
8
If I want to find the difference between two consecutive rows. Then I have to store the specific rows in two variables and then find the difference. Could someone tell how this can be done.
Regards, (7 Replies)
Hi,
I have a file in the following format
a1 b1 c1 d1
a2 b2 c2 d2
a3 b3 c3 d3
a4 b4 c4 d4
I need a script to find the difference between corresponding values of successive rows. So the output would have one less row than the input file and should look like:
a2-a1 b2-b1 c2-c1 d2-d1... (4 Replies)
Hi All,
I have a huge (and its really huge!) matrix about 400GB in size (2 million rows by 1.5 million columns) . I am trying to optimize its space by creating a sparse representation of it.
Miniature version of the matrix looks like this (matrix.mtx):
3.4543 65.7876 54.564
2.12344... (4 Replies)
Hello,
I want to extract several columns and rows from a huge tab delimited file
for example: I want to print from from column 3 to 68 till row number 30.
I have tried using cut command but it was extracting whole 3rd and 68th column.
Please suggest a solution.
Ryan (8 Replies)
Hi Friends,
I have come across some files where some of the columns don not have data.
Key, Data1,Data2,Data3,Data4,Data5
A,5,6,,10,,
A,3,4,,3,,
B,1,,4,5,,
B,2,,3,4,,
If we see the above data on Data5 column do not have any row got filled. So remove only that column(Here Data5) and... (4 Replies)
I have a file that has multiple lines, of grouped data, that typically all have the same values in the 1st field, however, I would like to search the 1st field for any differences and set a flag to use in an "if" statement to run some other routine.
An example of the typical file is below,... (2 Replies)
Hi all, I know this sounds suspiciously like a homework course; but, it is not.
My goal is to take a file, and match my "ID" column to the "Date" column, if those conditions are true, add the total number of minutes worked and place it in this file, while not printing the original rows that I... (6 Replies)
Hi all, I'm pretty much a newbie to UNIX. I would appreciate any help with UNIX coding on comparing two large csv files (greater than 10 GB in size), and output a file with matching columns.
I want to compare file1 and file2 by 'id' and 'chain' columns, then extract exact matching rows'... (5 Replies)
Hallo,
I would need to extract only rows which has different value in the second and third column.
Thank you very much for any advices
Input:
A 0 0
B 0 1
C 1 1
D 1 3
Output
B 0 1
D 1 3 (4 Replies)
16:45:51 10051 77845
16:45:51 10051 77845
16:46:52 10051 77846
16:46:53 10051 77846
Match the last PID then subtract second line time with first line.
Please help me with any command or script.
working in media company on a project OS: RHEl7
tried command:
awk 'function... (2 Replies)
Discussion started by: vivekn
2 Replies
LEARN ABOUT DEBIAN
io::all::ftp
IO::All::FTP(3pm) User Contributed Perl Documentation IO::All::FTP(3pm)NAME
IO::All::FTP - Extends IO::All to FTP URLs
SYNOPSIS
use IO::All;
"hello world
" > io('ftp://localhost/test/x'); # save to FTP
io('ftp//example.org/pub/xyz') > io('xyz'); # GET to file
# two ways of getting a file with a password:
$content < io('ftp://me:secret@example.org/xyz');
$content < io('ftp://example.org/xyz')->user('me')->password('secret');
DESCRIPTION
This module extends IO::All for dealing with FTP URLs. Note that you don't need to use it explicitly, as it is autoloaded by IO::All
whenever it sees something that looks like an FTP URL.
METHODS
This is a subclass of IO::All::LWP. The only new method is "ftp", which can be used to create a blank IO::All::FTP object; or it can also
take an FTP URL as a parameter. Note that in most cases it is simpler just to call io('ftp//example.com'), which calls the "ftp" method
automatically.
OPERATOR OVERLOADING
The same operators from IO::All may be used. < GETs an FTP URL; > PUTs to an FTP URL.
SEE ALSO
IO::All::LWP, IO::All, LWP.
AUTHORS
Ivan Tubert-Brohman <itub@cpan.org> and Brian Ingerson <ingy@cpan.org>
COPYRIGHT
Copyright (c) 2007. Ivan Tubert-Brohman and Brian Ingerson. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
See <http://www.perl.com/perl/misc/Artistic.html>
perl v5.10.0 2007-03-29 IO::All::FTP(3pm)