while (my $row = $sth->fetchrow_arrayref) {
$var->{"@$row"}=" ";
}
Can anyone help me understanding above mentioned.
i) As per my knowledge $row is taking ARRAY Refernce from the database
ii) @$row is containing the value of 0th index of the array, testted the same.
but I am not able... (0 Replies)
I need to sort the following file by the rhdiskpower devices in the last column:
Total_MB Free_MB OS_MB Name Failgroup Library Label UDID Product Redund Path
1024 851 1024 OCRVOT1_0000 OCRVOT1_0000 System UNKNOWN ... (3 Replies)
How are these two different? They both prevent output and error from being displayed. I don't see the use of the "&"
echo "hello" > /dev/null 2>&1
echo "hello" > /dev/null 2>1 (3 Replies)
I am new to unix and learning. Came across this statement
cmd 2>/dev/null/ <<EOF
2>/dev/null/ denotes that std error is stored in /dev/null but that is considered as a non-existent file!! What does << EOF mean and how does it affect?
I am really confused.. :wall:
Can some one explain this... (2 Replies)
why is this giving me errors?
i type this in: find / -name "something.txt" 2>/dev/null
i get the following error messages:
find: bad option 2
find: path-list predicate-list
:confused: (5 Replies)
Hi Guys,
I'm sorry but I can't find answer for this, what is the meaning of -s option in "if" statement on unix scipting. Please see sample below:
opath=/home/output
for i in N1 N2 N3 N4
do
echo $i
if
then
grep $i $opath/N5_CRAI > $opath/N5_$i.crai
chmod 777 $opath/N5_$i.crai
... (7 Replies)
I apologize if this question has been answered else where or is too elementary.
I ran across a KSH script (long unimportant story) that does this:
if ; then
CAS_SRC_LOG="/var/log/cas_src.log 2>&1"
else
CAS_SRC_LOG="/dev/null 2>&1"
fithen does this:
/usr/bin/echo "heartbeat:... (5 Replies)
Hi all.
I have a .txt file that I need to sort it
My file is like:
1- 88 chain0 MASTER (FF-TE) FFFF 1962510 /TCK T FD2TQHVTT1 /jtagc/jtag_instreg/updateinstr_reg_1 dff1 (TI,SO)
2- ... (10 Replies)
Discussion started by: Behrouzx77
10 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)