To anyone who can help greetings,
I am a beginner at Unix shell scripting and am taking a class.
The assignment question is as follows:
use a command-line tool named "itstat" which will display the resolution of an image file and some other lines of information. It accepts a list of image... (1 Reply)
To anyone who can help greetings,
I am a beginner at Unix shell scripting.
I need to know how to use the command line tool "itstat".
I understand it's application, however I cannot find any additional information.
Any assistance will be greatly appreciated. (3 Replies)
Hi all!
I'm a newbie to shell scripting.
I want to create a script that will store a line from a text file in a variable so I can then use it to open firefox with that text in the address bar (the text file contains a list of addresses).
I have tried the following:
#!/bin/sh
a='sed -n 2p... (2 Replies)
Hi,
I am assaigning the output to the variable outp and when i try to loop thru the variable i see the original content $OUTPUT also in the array outp.
I dont want to have the original content in the array outp.
Please reply.
outp=$(echo $OUTPUT | awk '{FS = "|"}{
for(i=0;i<NF;i++)... (8 Replies)
HI all,
I am attempting to use the scp statemet in a shell script that I am writing
I need to have the user of the script enter a password at the time of the shell script running.I have the following questions?
1) how do i disable the automatic text echo when the user is entering the... (1 Reply)
Testing for the presence/absence of a pattern in a file, using /bin/sh:
while read a;
do
b="${a##*pattern*}";
;
done < file
This returns 0 if there's a match. That signal ($?) can then be used outside the loop.
However this method reads through the whole file, even if the match... (2 Replies)
Hi,
I need to write a script that runs a series of commands in multiple subfolders. The problem is that I dont want to change directory for every folder. So this is why I thought to use a master script to activate the smaller ones.
So, is there a way to command other scripts to open in... (9 Replies)
Hi guys,
I am wanting to create a script that will logon to HackThisSite.org and complete Programming Mission 11. You can find a link to this mission here for your reference:
www hackthissite org/missions/prog/11/
The following is what I have so far:
#!/bin/bash
USER="myUsername"... (0 Replies)
hey i have to connect to sql through shell script , then store the value of the query in a variable and then compare it after some time after running a process.
i have used this code but it is not working.
#!/bin/sh
Val = (sqlplus -s rte/rted2@rel76d2 <<!
SELECT MAX(STAT_ID) FROM CVT_STATS;... (3 Replies)
I tried to run a command which simply generates SSH key with out prompting password.
After several trails , got the below command to run the script :
ssh-keygen -t rsa -N "" -f id_rsa
-N "" tells it to use an empty passphrase (the same as two of the enters in an interactive script)
-f... (0 Replies)
Discussion started by: ulaxmi
0 Replies
LEARN ABOUT DEBIAN
tree::simple::visitor::findbynodevalue
Tree::Simple::Visitor::FindByNodeValue(3pm) User Contributed Perl Documentation Tree::Simple::Visitor::FindByNodeValue(3pm)NAME
Tree::Simple::Visitor::FindByNodeValue - A Visitor for finding an element in a Tree::Simple hierarchy by node value
SYNOPSIS
use Tree::Simple::Visitor::FindByNodeValue;
# create a visitor object
my $visitor = Tree::Simple::Visitor::FindByNodeValue->new();
# set the search path for our tree
$visitor->searchForNodeValue("My Tree Node");
# pass the visitor to a tree
$tree->accept($visitor);
# fetch the result, which will
# be the Tree::Simple object that
# we have found, or undefined
my $result = $visitor->getResult() || die "No Tree found";
DESCRIPTION
Given a node value and Tree::Simple hierarchy, this Visitor will attempt to find the node with the same node value.
METHODS
new There are no arguments to the constructor the object will be in its default state. You can use the "setNodeFilter",
"setTraversalMethod", "includeTrunk" and "searchForNodeValue" methods to customize its behavior.
includeTrunk ($boolean)
Based upon the value of $boolean, this will tell the visitor to include the trunk of the tree in the search as well.
setTraversalMethod ($visitor)
By default we will use Tree::Simple's built in depth-first (pre-order) traverse method. If however, you desire the tree to be search in
a different ordering, this can be accomplished using a different traversal method, you can supply a $visitor object implementing that
traversal type to this method (See Tree::Simple::Visitor::BreadthFirstTraversal, Tree::Simple::Visitor::PreOrderTraversal and
Tree::Simple::Visitor::PostOrderTraversal).
searchForNodeValue ($node_value)
This is the node value we will attempt to find within the tree.
setNodeFilter ($filter_function)
This method accepts a CODE reference as its $filter_function argument and throws an exception if it is not a code reference. This code
reference is used to further check the tree nodes as they are searched and so can be used to customize search behavior. For instance,
you could to check against the node value as well as some other criteria. The filter function should accept a single argument, which is
the current Tree::Simple object and return either true(1) on success, or false(0) on failure.
visit ($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.
getResult
This method will return the tree found with the specified node value (set by the "searchForNodeValue" method) or "undef" if no tree is
found.
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::FindByNodeValue(3pm)