Hello everyone... please help if you can -- I'm stumped. Making this work will save me hours of manual labor:
I need to search file2 for pattern in file1. If pattern found append file2 line to file3. If pattern not found append a blank line to file3.
file1 contents example:
123
456
789... (6 Replies)
i need to compare three files in unix
a.txt b.txt c.txt
1 2 1
2 5 3
4 6 5
5 6
6
i need to insert a blank line in the file if i don't find a match
and put the items at the same column if found a match
The items in the files... (4 Replies)
I need your lights.
On Unix I have a file consisting of a single line of 2 700 000 characters ...
Like that :
30004SCT TARTENPION 00003FONTEN 30008*E GOUDYEAR DODO 1 Street Bigggest 30004OHOHOHITSALONGLINE ...... (3 Replies)
Hi all,
I've googling around forum regarding my prob, the nearest would same as thread tittled Insert blank line if grep not found, but she/he did not mention the solution, so I would like to request your help
I've this task, to search in file2 based on pattern in file1 and output it to... (4 Replies)
Hello,
I am trying to write a script that will count the number of characters for each line in a file and all the lines that have less than 80 characters and that are ending with a period, I want it to insert a blank line after them immediately. But, for whatever reason the condition if ]] is... (3 Replies)
Hi,
I have a file with no blank line anywhere
Its a conf file, The lines between and starts with "#" should be sort out with the first three characters(characters are between (a-z)). and insert a blank space in between the uniq lines. For clear understanding ,pls find the below input file... (11 Replies)
Hello,
I have a file that I want to be able to insert a new line before every instance of a regex. I can get it to do this for each line that contains the regex, but not for each instance.
Contents of infile:
Test this 1...
Test this 2...
Test this 3... Test this 4... Test this... (2 Replies)
Hello.
I have a config file (/etc/my_config_file) which may content :
#
# port for HTTP (descriptions, SOAP, media transfer) traffic
port=8200
# network interfaces to serve, comma delimited
network_interface=eth0
# set this to the directory you want scanned.
# * if have multiple... (6 Replies)
I need to identify the exact text of San Antonio Generator Running in the output my script which lands to a text file. Once SED finds the specific text, I need it to insert one line above the matched text.
Here is what I have so far that isn't working all that well for me. Any help would be... (7 Replies)
Discussion started by: jbrass
7 Replies
LEARN ABOUT DEBIAN
tree::simple::visitor::preordertraversal
Tree::Simple::Visitor::PreOrderTraversal(3pm) User Contributed Perl Documentation Tree::Simple::Visitor::PreOrderTraversal(3pm)NAME
Tree::Simple::Visitor::PreOrderTraversal - A Visitor for pre-order traversal a Tree::Simple hierarchy
SYNOPSIS
use Tree::Simple::Visitor::PreOrderTraversal;
# create an visitor
my $visitor = Tree::Simple::Visitor::PreOrderTraversal->new();
# pass our visitor to the tree
$tree->accept($visitor);
# print our results
print join ", " => $visitor->getResults();
# this will print this:
# 1 1.1 1.1.1 1.2 2 2.1 3 3.1
# assuming your tree is like this:
# 1
# 1.1
# 1.1.1
# 1.2
# 2
# 2.1
# 3
# 3.1
DESCRIPTION
Pre-order traversal is a depth-first traversal method in which the sub-tree's are processed after the parent. It is essentially a wrapper
around the base Tree::Simple::Visitor class, and is a separate module here for completeness. (If you have a post-order, you should have a
pre-order too).
METHODS
new There are no arguments to the constructor the object will be in its default state. You can use the "setNodeFilter" method to customize
its behavior.
includeTrunk ($boolean)
Based upon the value of $boolean, this will tell the visitor to include the trunk of the tree in the traversal as well.
setNodeFilter ($filter_function)
This method accepts a CODE reference as its $filter_function argument and throws an exception if it is not a code reference. This code
reference is used to filter the tree nodes as they are collected. This can be used to customize output, or to gather specific
information from a more complex tree node. The filter function should accept a single argument, which is the current Tree::Simple
object.
visit ($tree)
This is the method that is used by Tree::Simple's "accept" method. It can also be used on its own, it requires the $tree argument to be
a Tree::Simple object (or derived from a Tree::Simple object), and will throw and exception otherwise.
getResults
This method returns the accumulated results of the application of the node filter to the tree.
BUGS
None that I am aware of. Of course, if you find a bug, let me know, and I will be sure to fix it.
CODE COVERAGE
See the CODE COVERAGE section in Tree::Simple::VisitorFactory for more inforamtion.
SEE ALSO
These Visitor classes are all subclasses of Tree::Simple::Visitor, which can be found in the Tree::Simple module, you should refer to that
module for more information.
AUTHOR
stevan little, <stevan@iinteractive.com>
COPYRIGHT AND LICENSE
Copyright 2004, 2005 by Infinity Interactive, Inc.
<http://www.iinteractive.com>
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.10.1 2010-02-18 Tree::Simple::Visitor::PreOrderTraversal(3pm)