The reason is that >aaa and >bbb are handled by the shell.
While it does not matter where you place them, one usually places them at the end.
So your code is identical to
The tee (or a further descriptor) makes aaa and bbb identical - probably not what you intended.
---------- Post updated at 03:16 PM ---------- Previous update was at 02:07 PM ----------
Probably you want something like this:
Because -print is far more efficient and there are likely more files than directories, the following should be more efficient:
These 2 Users Gave Thanks to MadeInGermany For This Post:
I'm redirecting the output of a command to a logfile, however, if the user is on a terminal I would also like the output to be displayed on the screen.
tar tvf some_tarfile >Logfile
if the user is on a term then have the output to the Logfile and also be displayed on the screen at the same... (2 Replies)
Hi there
I have a script that runs but it outputs everything onto the screen instead of a file.
I've tried using the > outputfile.txt however all it does is dump the output to the screen and creates an outputfile.txt but doesn't put anything in that file.
Any help would be appreciated
... (6 Replies)
Hello Experts,
I am on Solaris 10
Due to some limitations in one of the vendor software, I am forced to output the command to exec and then run it from there.
For example..
$(echo "/usr/bin/cp a.dat b.dat") # This works
However,
$(echo "/usr/bin/cat a.dat > c.dat") # This does not... (8 Replies)
We have an application here that does some table queries and then prints the result on screen. I do not have the code of this application (which i will just call "queryCommand"), but what it does is that you call it with some parameters and it prints some info about the query and then the... (5 Replies)
Hello i am trying to write a script that will redirect the output to a certain file. Here is the code so far:
#!/bin/bash
ps -e | sort | more > psfile
When I execute the script nothing happens since i assume the output was redirected to the file called psfile. When I try to look at the... (1 Reply)
Hi Friends,
Please help me to sort out this problem, I am running this in centos o/s and whenever I run this script I am getting "find: missing argument to `-exec' " but when I run the same code in the command line I didn't find any problem. I am using perl script to run this ... (2 Replies)
Hi
I am making a script where i want to redirect the output of ls -l to a file
Example
#ls -l fil1.txt > /opt/temp/a.txt
ac: No such file or directory
I want to capture output of this command
like here output is
ac: No such file or directory
can anyone help (4 Replies)
Hi all
I was wondering if there was a slicker way of doing this without the file -
awk '{print $2}' FS=":" "${FILE}" > "${TMPFILE}"
{
read M_GRP_ID || m_fail 1 "Error: Read failed 1 (${FUNCNAME})"
read M_GRP_WAIT || m_fail 1 "Error: Read failed 2 (${FUNCNAME})"
}... (6 Replies)
Hi,
I am having issues with syntax when I am trying to send a job to the background after a input redirection.
I have this script which sends some files to different servers after zipping them. Once I execute it, it will ask for user input as of which server the files need to go to. (The... (3 Replies)
Hello,
I am running a shell script on AIX 6.1. The script calls ksh to run. ksh is also the login shell for the account under which I am running this script, but for convenience I always change to the bash shell via "exec bash" after I "su" to the account.
The script redirects stdout and... (4 Replies)
Discussion started by: Clovis_Sangrail
4 Replies
LEARN ABOUT DEBIAN
tree::simple::visitor::createdirectorytree
Tree::Simple::Visitor::CreateDirectoryTree(3pm) User Contributed Perl Documentation Tree::Simple::Visitor::CreateDirectoryTree(3pm)NAME
Tree::Simple::Visitor::CreateDirectoryTree - A Visitor for create a set of directories and files from a Tree::Simple object
SYNOPSIS
use Tree::Simple::Visitor::CreateDirectoryTree;
# create a Tree::Simple object which
# represents a directory heirarchy
my $tree = Tree::Simple->new("www/")
->addChildren(
Tree::Simple->new("conf/")
->addChildren(
Tree::Simple->new("startup.pl"),
Tree::Simple->new("httpd.conf")
),
Tree::Simple->new("cgi-bin/"),
Tree::Simple->new("ht_docs/"),
Tree::Simple->new("logs/")
->addChildren(
Tree::Simple->new("error.log"),
Tree::Simple->new("access.log")
),
);
# create an instance of our visitor
my $visitor = Tree::Simple::Visitor::CreateDirectoryTree->new();
# pass the visitor to a Tree::Simple object
$tree->accept($visitor);
# the www/ directory now mirrors the structure of the tree
DESCRIPTION
This visitor can be used to create a set of directories and files from a Tree::Simple object hierarchy.
METHODS
new There are no arguments to the constructor the object will be in its default state. You can use the "setNodeFilter", "setFileHandler"
and "setDirectoryHandler" methods to customize its behavior.
setNodeFilter ($filter_function)
This method accepts a CODE reference as its $filter_function argument and throws an exception if it is not a code reference. This code
reference is used to filter the tree nodes as they are used to create the directory tree, it can be basically used as a node pre-
processor. An example usage of this might be to enforce the 8.3 naming rules of DOS, or the 32 character limit of older macintoshes.
setFileHandler ($file_handler)
This method accepts a CODE reference as its $file_handler argument and throws an exception if it is not a CODE reference. This method
can be used to create custom file creation behavior. The default behavior is to just create the file and nothing else, but by using
this method it is possible to implement some other custom behavior, such as creating a file based on a template. The function is passed
the full path of the file to be created (as built by File::Spec).
setDirectoryHandler ($dir_handler)
This method accepts a CODE reference as its $dir_handler argument and throws an exception if it is not a CODE reference. This method
can be used to create custom directory creation behavior. The default behavior is to just create the directory and nothing else, but by
using this method it is possible to implement some other custom behavior, such as creating a directory on a remote server. The function
is passed the full path of the directory to be created (as built by File::Spec).
visit ($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.
The tree is processed as follows:
Any node which is not a leaf is considered a directory.
Obviously since files themselves are leaf nodes, this makes sense that non-leaves will be directories.
Any node (including leaf nodes) which ends in either the character "/" or "" is considered a directory.
I think it is a pretty standard convention to have directory names ending in a separator. The separator itself is stripped off
before the directory name is passed to File::Spec where the platform specific directory path is created. This means that it does
not matter which one you use, it will be completely cross platform (at least as cross-platform as File::Spec is).
All other nodes are considered to be files.
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::CreateDirectoryTree(3pm)