Hi,
I am trying to remove duplicate lines from a file. For example the contents of example.txt is:
this is a test
2342
this is a test
34343
this is a test
43434
and i want to remove the "this is a test" lines only and end up with the numbers in the file, that is, end up with:
2342... (4 Replies)
Hi
i have the below lines from a file
7538
PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036
PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036
PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036... (3 Replies)
Hi,
I need to concatenate three files in to one destination file.In this if some duplicate data occurs it should be deleted.
eg:
file1:
-----
data1 value1
data2 value2
data3 value3
file2:
-----
data1 value1
data4 value4
data5 value5
file3:
-----
data1 value1
data4 value4 (3 Replies)
Hi Guru's , I have a whole bunch of files in /var/tmp that i need to strip any blank lines from, so ive written the following script to identify the lines (which works perfectly).. but i wanted to know, how can I actually strip the identified lines from the actual source files ??
my... (11 Replies)
Hello,
I am in need of removing duplicate lines from within a file per section.
File:
ABC1 012345 header
ABC2 7890-000
ABC3 012345 Header Table
ABC4
ABC5 593.0000 587.4800
ABC5 593.5000 587.6580 <= dup need to remove
ABC5 593.5000 ... (5 Replies)
In my bash script I want to echo lines in a file and ensure no blank lines are echoed:for i in $(cat txt)
do
echo $i | sed 's/|/ /g;s/ SEARCHTERM$//g;s/ /\r\n/g;s/^$/d'
done
Keep in mind this is a fragment so ignore the fact that the for loop is not closed. When I add the "s/^$/d' per... (12 Replies)
Hi All,
How do i remove continuos blank lines from a file.
I have a file with data:
abc;
def;
ghi;
jkl;
mno;
pqr;
In the above file, there are two blank lines. I want to remove, one out of them.
My output should look like: (2 Replies)
Hi,
my input file is like this I want to remove the blank line.
"/home/rit/sandbox/garuda/data/test/woman/T_RITK_F0008_ML_100080039.lab"
r
a
N
e
l
a
k
sh
a
m
.
"/home/rit/sandbox/garuda/data/test/woman/T_RITK_F0008_ML_100070453.lab"
a
v
a
s (4 Replies)
Discussion started by: sreejithalokkan
4 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)