I'm trying to clean up my server and I have the list of some "special" users stored on the text file like this
Now I want to write a shell script to finger all of them so I can have some kind of ideas who they are but here comes the problem....I completely forgot how to do it with shell... (3 Replies)
I need to run a command inside root-environment, and want to use:
su - root -c "some command..."
Then I am prompted for a password, of course.
Is it possible to put this password in a file, and present this files content, to the command above?:confused: (1 Reply)
i need help with my script....
i am suppose to grab files within a certain date range
now i have done that already using the touch and find command (found them in other threads)
touch -d "$date_start" ./tmp1
touch -d "$date_end" ./tmp2
find "$data_location" -maxdepth 1 -newer ./tmp1 !... (6 Replies)
Hi all,
I have a large text file and also a smaller list of program names. I want to find out how many of those programs exist in the large text file. Can someone help me with the command/script please. The program list is along the lines of
tranwe2
tranwe3
tranye5
etc
so basically I... (5 Replies)
I have a script that is working when I input parameters from the command line. I was under the assumption that i could use a redirect for the input.
script fred.sh:
value1=$1
value2=$2
print $value1 $value2
Running from command line:
fred.sh 1 2 1 2
Contents of file fred.txt:... (3 Replies)
Hi ,
i am having an file which contains 5 file_name data, i need to read the file name and will perform certain operation and generate out file names with named as 5 individual file_names
for eg:
file.txt contains
file_name1.txt|hai
file_name2.txt|bye
file_name3.txt|how... (3 Replies)
Hi,
I want to compare a value from test file and redirect the o/p value to the same file
input file
250 32000 32 128
Below is my code
awk '{ if ($1 < "300") print $1 > /tmp/test}' test
want to compare 250 < 300 then print 300 to the same place
below is the... (24 Replies)
I'm trying to find out what happened to the rogue game that apt-get told me it installed, so I thought I would find the file. I went to the root and entered:
find -name "rog*.*"
I get a large number of lines saying my access is denied in various directories. I figure I'll practice my Unix... (14 Replies)
Discussion started by: arghvark
14 Replies
LEARN ABOUT DEBIAN
tree::simple::visitor::postordertraversal
Tree::Simple::Visitor::PostOrderTraversal(3pm) User Contributed Perl Documentation Tree::Simple::Visitor::PostOrderTraversal(3pm)NAME
Tree::Simple::Visitor::PostOrderTraversal - A Visitor for post-order traversal a Tree::Simple hierarchy
SYNOPSIS
use Tree::Simple::Visitor::PostOrderTraversal;
# create an visitor
my $visitor = Tree::Simple::Visitor::PostOrderTraversal->new();
# pass our visitor to the tree
$tree->accept($visitor);
# print our results
print join ", " => $visitor->getResults();
# this will print this:
# 1.1.1 1.1 1.2 1 2.1 2 3.1 3
# assuming your tree is like this:
# 1
# 1.1
# 1.1.1
# 1.2
# 2
# 2.1
# 3
# 3.1
DESCRIPTION
Post-order traversal is a variation of the depth-first traversal in which the sub-tree's are processed before the parent. It is another
alternative to Tree::Simple's "traverse" method which implements a depth-first, pre-order traversal.
METHODS
new There are no arguments to the constructor the object will be in its default state. You can use the "setNodeFilter" method to customize
its behavior.
includeTrunk ($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 2005-07-14 Tree::Simple::Visitor::PostOrderTraversal(3pm)