Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Shuffling a text file
Operating Systems Linux Fedora Shuffling a text file Post 302703613 by anurupa777 on Thursday 20th of September 2012 04:59:50 AM
Old 09-20-2012
Try if this works
Code:
awk 'BEGIN{srand() }
{ lines[++d]=$0 }
END{
    while (1){
    if (e==d) {break}
        random = int(1 + rand() * d)
        if ( random in lines  ){
            print lines[random]
            delete lines[random]
            ++e
        }
    }
}' file

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Ping text file of ip addressese and output to text file

I am basically a scripting noob, I have some programming logic, and I wouldn't post here if my 3 hours of searching actually found something. So far this is what I have: " #! /bin/ksh List=./pinglist1.txt cat $List | while read ip do Pingable="" ping $ip -n 2 | awk '/100%/ {print... (11 Replies)
Discussion started by: Lasthitlarry
11 Replies

2. Shell Programming and Scripting

how can I bcp out a table into a text file including the header row in the text file

Hi All, I need to BCP out a table into a text file along with the table headers. Normal BCP out command only bulk copies the data, and not the headers. I am using the following command: bcp database1..table1 out file1.dat -c -t\| -b1000 -A8192 -Uuser -Ppassword -efile.dat.err Regards,... (0 Replies)
Discussion started by: shilpa_acc
0 Replies

3. Shell Programming and Scripting

Shuffling 'cards' using perl.

I would be very grateful if someone could help me with this; using pop, shift, push, and the starting code below, I'd like a script that sufficiently "shuffles" a simulated deck of cards before printing the top five cards. #!/usr/bin/perl @startingdeck = ("A H","2 H","3 H","4 H","5 H","6... (9 Replies)
Discussion started by: DemonixX
9 Replies

4. Shell Programming and Scripting

Create multiple text file from a single text file on AIX

Hi I need to create multiple text files from onc text file on AIX. The data of text files is as below: ********************************************** ********************************************** DBVERIFY: Release 10.2.0.4.0 - Production on Tue Nov 10 13:45:42 2009 Copyright (c) 1982,... (11 Replies)
Discussion started by: lodhi1978
11 Replies

5. Shell Programming and Scripting

search text file in file if this file contains necessary text (awk,grep)

Hello friends! Help me pls to write correct awk and grep statements for my task: I have got files with name filename.txt It has such structure: Start of file FROM: address@domen.com (12...890) abc DATE: 11/23/2009 on Std SUBJECT: any subject End of file So, I must check, if this file... (4 Replies)
Discussion started by: candyme
4 Replies

6. UNIX for Dummies Questions & Answers

Converting a text file with irregular spacing into a space delimited text file?

I have a text file with irregular spacing between values which makes it really difficult to manipulate. Is there an easy way to convert it into a space delimited text file so that all the spaces, double spaces, triple spaces, tabs between numbers are converted into spaces. The file looks like this:... (5 Replies)
Discussion started by: evelibertine
5 Replies

7. UNIX for Dummies Questions & Answers

How to grep multiple lines from a text file using another text file?

I would like to use grep to select multiple lines from a text file using a single-column text file. Basically I want to only select lines from the first text file where the second column of the first text file matches the second text file. How do I go about doing that? Thanks! (5 Replies)
Discussion started by: evelibertine
5 Replies

8. UNIX for Dummies Questions & Answers

Extracting lines from a text file based on another text file with line numbers

Hi, I am trying to extract lines from a text file given a text file containing line numbers to be extracted from the first file. How do I go about doing this? Thanks! (1 Reply)
Discussion started by: evelibertine
1 Replies

9. UNIX for Dummies Questions & Answers

Delete records based on a text file from a text file

Hi Folks, I am a novice and need to build a script in bash. I have 2 text files data.txt file is big file, column 2 is the we need to search and delete in the output. The filter file contains the rows to be deleted. Data.txt state city zone Alabama Huntsville 4 California SanDiego 3... (3 Replies)
Discussion started by: tech_frk
3 Replies

10. Shell Programming and Scripting

Match text to lines in a file, iterate backwards until text or text substring matches, print to file

hi all, trying this using shell/bash with sed/awk/grep I have two files, one containing one column, the other containing multiple columns (comma delimited). file1.txt abc12345 def12345 ghi54321 ... file2.txt abc1,text1,texta abc,text2,textb def123,text3,textc gh,text4,textd... (6 Replies)
Discussion started by: shogun1970
6 Replies

LEARN ABOUT DEBIAN

imager::qrcode

Imager::QRCode(3pm)					User Contributed Perl Documentation				       Imager::QRCode(3pm)

NAME

       Imager::QRCode - Generate QR Code with Imager using libqrencode

SYNOPSIS

	   use Imager::QRCode;

	   my $qrcode = Imager::QRCode->new(
	       size	     => 2,
	       margin	     => 2,
	       version	     => 1,
	       level	     => 'M',
	       casesensitive => 1,
	       lightcolor    => Imager::Color->new(255, 255, 255),
	       darkcolor     => Imager::Color->new(0, 0, 0),
	   );
	   my $img = $qrcode->plot("blah blah");
	   $img->write(file => "qrcode.gif");

	   # or instance method
	   use Imager::QRCode qw(plot_qrcode);

	   my $img = plot_qrcode("blah blah", \%params);
	   $img->write(file => "qrcode.gif");

DESCRIPTION

       This module allows you to generate QR Code with Imager. This module use libqrencode '2.0.0' and above.

METHODS

       new
	       $qrcode = Imager::QRCode->new(%params);

	   The "new()" constructor method instantiates a new Imager::QRCode object. "new()" accepts the following parameters.

	   o   "size" - Horizontal and vertical size of module(dot). Default is 4.

	   o   "margin" - Margin size of QR Code. Default is 3.

	   o   "level" - Error collectin level. Valid values are 'M', 'L', 'Q' or 'H'. Default is 'L'.

	   o   "version" - Version of the symbol. If specify '0', this module chooses the minimum version for the input data. Default is '0'.

	   o   "mode" - Encoding mode. Valid values are 'numerical', 'alpha-numerical', '8-bit' or 'kanji'. Default is '8-bit'.

	       If not give "casesensitive" then should be given "mode". If 'kanji' is given, characters will be encoded as Shift-JIS characters.
	       If '8-bit' is given, all of non-alpha-numerical characters will be encoded as is. If you want to embed UTF-8 string, choose
	       '8-bit'.

	   o   "casesensitive" - If your application is case-sensitive using 8-bit characters, set to '1'. Default is '0'.

       plot($text)
	       $img = $qrcode->plot("blah blah");

	   Create a new QR Code image. This method returns Imager object ploted QR Code with the given text.

INSTANT METHODS

       plot_qrcode($text, \%params)
	   Instant method. $text is input text. %params is same parameter as "new()".

SEE ALSO

       "Imager", "http://www.qrcode.com/", "http://megaui.net/fukuchi/works/qrencode/index.en.html"

AUTHOR

       Yoshiki KURIHARA  "<kurihara __at__ cpan.org>"

THANKS

       Tokuhiro Matsuno

LICENCE AND COPYRIGHT

       Copyright (c) 2011, Yoshiki KURIHARA "<kurihara __at__ cpan.org>".

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.

perl v5.14.2							    2012-12-16						       Imager::QRCode(3pm)
All times are GMT -4. The time now is 07:49 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy