Sorry for such a dreadful title, but I'm not sure how to be more descriptive. I'm hoping some of the more gurutastic out there can take a look at a solution I came up with to a problem, and advice if there are better ways to have gone about it.
To make a long story short around 20K pieces of... (2 Replies)
I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends.
As an example I've written a script called question (The fist command is to show what is the contents of the... (2 Replies)
Hi Im running this script, which is supposed to find the max value build some tables and then stop running once all the tables are built. Thing is , it keeps assigning a null value to $h and then $g is null so it keep building tables i.e. testupdateNUL. How can I stop this? Here is what I have:
... (4 Replies)
Hi all
Sorry for the basic question, but i am writing a shell script to get around a slightly flaky binary that ships with one of our servers. This particular utility randomly generates the correct information and could work first time or may work on the 12th or 100th attempt etc !.... (4 Replies)
Hi,
hope I am posting in the right section.
My problem is that I have 2 or more arguments passed and I want to check if the arguments passed exists or not.
The first argument should not exist and the remaining others should exist.
example:
./shells.sh argument1 argument2 argument3
... (5 Replies)
Hi, I was debating if I should put this in the dummies or scripts section, I apologize in advance if I chose poorly.
Fairly new to Unix and BASH scripting but I thought I made it fairly well given my limited understanding. However, the output indicates that it's looping and I'm ending up with a... (5 Replies)
Hello All,
Maybe I'm Missing something here but I have NOOO idea what the heck is going on with this....?
I have a Variable that contains a PATTERN of what I'm considering "Illegal Characters". So what I'm doing is looping
through a string containing some of these "Illegal Characters". Now... (5 Replies)
Hi,
I want to read file multiple times. Right now i am using while loop but that is not working.
ex.
While read line
do
while read line2
do
echo stmt1
#processing some data based on data.,
done < file2.txt
done < file1.txt # This will have 10... (4 Replies)
Hi all,
i developed a script to measure the uptime of a process in a Solaris 10/11 environments.
All is well, but i came across a situation where there are multiple processes of the same name. Basically i have the following result file:
beVWARS 13357 19592122
beVWARS 14329 19591910... (4 Replies)
Discussion started by: nms
4 Replies
LEARN ABOUT DEBIAN
yaml::node
YAML::Node(3pm) User Contributed Perl Documentation YAML::Node(3pm)NAME
YAML::Node - A generic data node that encapsulates YAML information
SYNOPSIS
use YAML;
use YAML::Node;
my $ynode = YAML::Node->new({}, 'ingerson.com/fruit');
%$ynode = qw(orange orange apple red grape green);
print Dump $ynode;
yields:
--- !ingerson.com/fruit
orange: orange
apple: red
grape: green
DESCRIPTION
A generic node in YAML is similar to a plain hash, array, or scalar node in Perl except that it must also keep track of its type. The type
is a URI called the YAML type tag.
YAML::Node is a class for generating and manipulating these containers. A YAML node (or ynode) is a tied hash, array or scalar. In most
ways it behaves just like the plain thing. But you can assign and retrieve and YAML type tag URI to it. For the hash flavor, you can also
assign the order that the keys will be retrieved in. By default a ynode will offer its keys in the same order that they were assigned.
YAML::Node has a class method call new() that will return a ynode. You pass it a regular node and an optional type tag. After that you can
use it like a normal Perl node, but when you YAML::Dump it, the magical properties will be honored.
This is how you can control the sort order of hash keys during a YAML serialization. By default, YAML sorts keys alphabetically. But notice
in the above example that the keys were Dumped in the same order they were assigned.
YAML::Node exports a function called ynode(). This function returns the tied object so that you can call special methods on it like
->keys().
keys() works like this:
use YAML;
use YAML::Node;
%$node = qw(orange orange apple red grape green);
$ynode = YAML::Node->new($node);
ynode($ynode)->keys(['grape', 'apple']);
print Dump $ynode;
produces:
---
grape: green
apple: red
It tells the ynode which keys and what order to use.
ynodes will play a very important role in how programs use YAML. They are the foundation of how a Perl class can marshall the Loading and
Dumping of its objects.
The upcoming versions of YAML.pm will have much more information on this.
AUTHOR
Ingy dA~Xt Net <ingy@cpan.org>
COPYRIGHT
Copyright (c) 2006, 2011-2012. Ingy dA~Xt Net. All rights reserved.
Copyright (c) 2002. 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 v5.14.2 2012-04-18 YAML::Node(3pm)