Parsing file, yaml file? Extracting specific sections
Here is a data file, which I believe is in YAML. I am trying to retrieve just the 'addon_domains" section, which doesnt seem to be as easy as I had originally thought. Any help on this would be greatly appreciated!! I have been trying to do this in awk and mostly bash scripting instead of perl or high level scripting language.
This is actually from /var/cpanel/userdata/username/main
Greetings All!!
I have a very peculiar problem where I have to parse a big text file and extract useful data out of it with starting and ending block pattern matching.
e.g. I have a input file like this:
sample data
block1
sample data
start
useful data
end
sample data
block2
sample... (5 Replies)
If a zip file contains several zip files, but if the file names of the files needed are known, is there a variation of the unzip command that will allow those few (individual) files to be extracted?
---
Example:
Zip file name: zip.zip
unzip -l zip.zip will display file01, file02, file03, etc.... (1 Reply)
Hi all,
I am stuck with a ruby script that extracts detials from yaml file and processes accordingly.
the yaml file
confivnic:
device:
vnic1:
policy:
- L2
mode: active
vnic2:
policy:
- L3
- L4
mode: active
type: aggr
... (1 Reply)
Dear All,
I have to extract a a few lines from a log file and I know the starting String and end string(WHich is same ). Is there any simplere way using sed - awk.
e.g. from the following file
--------------------------------------
Some text
Date: 21 Oct 2008
Text to be extracted... (8 Replies)
GNU sed version 4.1.4 on Windows XP SP3 from GnuWin32
I think that I've come across a seemingly simple text file change problem on a INI formatted file that I can't do with SED without side effects edge cases biting me. I've tried to think of various ways of doing this elegantly and quickly... (5 Replies)
hi all,
i searched in unix.com and accquired the following commands for extracting specific lines from a file ..
sed -n '16482,16482p' in.sql > out.sql
awk 'NR>=10&&NR<=20' in.sql > out.sql....
these commands are working fine if i give the line numbers as such .. but if i pass a... (2 Replies)
Hi All,
I have the file in this format
**** Results Data ****
Time or Step
1
2
20
0.000000000e+00 0s 0s 0s
1.024000000e+00 Us 0s 0s
1.100000000e+00 1s 0s 0s
1.100000001e+00 1s 0s 1s
2.024000000e+00 Us Us 1s
2.024000001e+00 ... (7 Replies)
Hi,
I need some advise on how to print 'sections' of the attached file. I am searching for some that says Marked Corrupt and print some lines after it.
At the moment I am running the command below:
sed -n -e '/Marked Corrupt/{N;N;p;}' rman_list_validate.txtThis gives me the following... (1 Reply)
Discussion started by: newbie_01
1 Replies
LEARN ABOUT SUSE
yaml::node
YAML::Node(3) User Contributed Perl Documentation YAML::Node(3)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. 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 v5.12.1 2010-01-03 YAML::Node(3)