I have a program that will export my data to a single file, but it assigns a file name that is overridden every time I run the program. I need to change the file name to have a sequential number in the filename.
How do I rename a file so that the filename contains the system date and time. I want... (5 Replies)
I have the following
for ((i=100; i<=1000; i++))
do
this goes in increments of 1
I need it to go up in increments of 100, how is that done in a for loop? (1 Reply)
Hi,
I have a very urgent requirement here. I have to find all files in the specified directory but not in the sub directories(The directory name is stored in a variable) which are older than the current date as well as current time and rename it as filename_yyyymmddhhmmss.ext and move it into a... (7 Replies)
i know how to add two numbers using expr,
but if i have a file with hundreds of numbers, how do i add them all together, without typing them all one by one?
for example, file.txt contains
4
5
6
7
how can i give a command to add them, without typing
$ expr `4 + 5 + 6 + 7` (7 Replies)
I have a set of folders like Jan1st, Jan2nd, Jan3rd... and so on.
I need to rename them to Jan1st2010,Jan2nd2010 .... and so on at one shot. (4 Replies)
Hi, What will be the best way to connect (ssh) to hundreds of nodes and grep log files parallely from shell. Using for loop seems to be sequential. Are there any shell built in construct which could be used to achieve this? Is the sub shell any good here? (1 Reply)
Need assistance to add code to hundreds of .html
Code will look like below and needs to be added below <html> tag:
<script>
Some .js code here
</script>
This will be used in Fedora release 7 (Moonshine).
I will appreciate any type of help and/or orientation.
Thank you! (4 Replies)
Hi,
In sftp script to get files, I have to rename all the files which I am picking. Rename command does not work here. Is there any way to do this?
I am using #!/bin/ksh
For eg: sftp user@host <<EOF
cd /path
get *.txt
rename *.txt *.txt.done
... (7 Replies)
Hello friends,
I have hundreds files in hand, which need extract some data from logs and read these data into an input file.
Here I will explain in detail using these two files as attached. read some data from .log file and write it into the .in file.
**explanation is given inside two... (9 Replies)
Discussion started by: liuzhencc
9 Replies
LEARN ABOUT DEBIAN
tree::simple::visitor::pathtoroot
Tree::Simple::Visitor::PathToRoot(3pm) User Contributed Perl Documentation Tree::Simple::Visitor::PathToRoot(3pm)NAME
Tree::Simple::Visitor::PathToRoot - A Visitor for finding the path back a Tree::Simple object's root
SYNOPSIS
use Tree::Simple::Visitor::PathToRoot;
# create an instance of our visitor
my $visitor = Tree::Simple::Visitor::PathToRoot->new();
# pass the visitor to a Tree::Simple object
$tree->accept($visitor);
# now get the accumulated path as a string
# with the '/' character as the delimiter
print $visitor->getPathAsString("/");
# include the tree's trunk in your
# output as well
$visitor->includeTrunk();
# for more complex node objects, you can specify
# a node filter which will be used to extract the
# information desired from each node
$visitor->setNodeFilter(sub {
my ($t) = @_;
return $t->getNodeValue()->description();
});
# you can also get the path back as an array
my @path = $visitor->getPath();
DESCRIPTION
Given a Tree::Simple object, this Visitor will find the path back to the tree's root node.
METHODS
new There are no arguments to the constructor the object will be in its default state. You can use the "includeTrunk" and "setNodeFilter"
methods to customize its behavior.
includeTrunk ($boolean)
Based upon the value of $boolean, this will tell the visitor to collect the trunk of the tree as well.
setNodeFilter ($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 $tree argument to be
a Tree::Simple object (or derived from a Tree::Simple object), and will throw and exception otherwise.
getPath
This will return the collected path as an array, or in scalar context, as an array reference.
getPathAsString ($delimiter)
This will return the collected path as a string with the path elements joined by a $delimiter. If no $delimiter is specified, the
default (', ') will be used.
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 2005-07-14 Tree::Simple::Visitor::PathToRoot(3pm)