09-11-2009
There a lot of things to answer you. So can you give for us a list you need ?
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I installed Redhat into my system. The reason? This was the version my friend was running and he told me about this one, so I downloaded and installed it. Simple enough :D
But as I am searching the net, I am coming across many other forms of linux made by other companies. Redhat seems to be... (2 Replies)
Discussion started by: Minnesota Red
2 Replies
2. Linux
How do i setup my linux server to act as a internal ftp server. i have 30 machines who would want to log onto external ftp servers ( for hosting and stuff ). They would have to go through a ftp server on the network server to get outside to the internet?
What program on linux would i use
How... (6 Replies)
Discussion started by: perleo
6 Replies
3. Shell Programming and Scripting
Hello everyone,
I am having to do a lot of perl scripting these days and I am learning a lot.
I have this problem
I want to move files from a folder and all its sub folders to one parent folder, they are all .gz files..
there is folder1\folder2\*.gz
and there are about 50 folders... (1 Reply)
Discussion started by: xytiz
1 Replies
4. Shell Programming and Scripting
Hi,
I am new to programming and also to perl..But i know 'perl' can come to my rescue, But I am stuck at many places and need help..any small help is much appreciated... below is the description of what i intend to acheive with my script.
I have a files named in this format... (13 Replies)
Discussion started by: xytiz
13 Replies
5. UNIX for Dummies Questions & Answers
How do we find the partition type in Linux? df -T will give me the mounted partition types like ufs, ext3 etc. How do I find out for say a newly added disk to the system? Please advise...
Thanks (2 Replies)
Discussion started by: lubu
2 Replies
6. UNIX for Dummies Questions & Answers
Hey ,
I was wondering how does Linux recognize file types if he doesn't use extensions to determine the file type ?
It's just a question not for a script or something else.
thnx:o (3 Replies)
Discussion started by: Eclecticaa
3 Replies
7. UNIX for Dummies Questions & Answers
Hello All
My Questions About Which Unix & Linux Certifications Names In This Days ?
I Mean Red Hat Certifications , Solaris Certifications , IBM Certifications , HP Certifications and BSD Certifications
just i need the names of these Certifications and How can i enter to Certifications... (1 Reply)
Discussion started by: Eng/G.Mohammad
1 Replies
8. Shell Programming and Scripting
Hi,
I am using image Magick for resizing the images. Everything is working as long as the file names are in English.
But when the file names are in European accented fonts like
sólido_sitzbezüge_textil_in_design.jpg
stándard_gris_thorium_tallisé.jpg
NOIR_MÉTALLISÉ.jpg
the program is skipping... (7 Replies)
Discussion started by: Merlin Joseph
7 Replies
9. Shell Programming and Scripting
I have a dilemma, we have users who are copying files to "directory 1." These images have file names which include the year it was taken. I need to put together a script to do the following:
Examine the file naming convention, ensuring it's the proper format (e.g. test-1983_filename-123.tif)... (8 Replies)
Discussion started by: Nvizn
8 Replies
10. UNIX and Linux Applications
Hi Team,
I am facing issue while using Xalan & Xerces for my application.
Below are my environment details i am using :-
Platform:- Oracle Linux 6.6
Compiler :- solarisstudio12.3 C++ compiler for Linux
Below are the versions of Xalan & Xerces source code used to build the shared object... (0 Replies)
Discussion started by: agrachirag
0 Replies
RRDp(3) User Contributed Perl Documentation RRDp(3)
NAME
RRDp - Attach RRDtool from within a perl script via a set of pipes;
SYNOPSIS
use RRDp
RRDp::start path to RRDtool executable
RRDp::cmd rrdtool commandline
$answer = RRD::read
$status = RRD::end
$RRDp::user, $RRDp::sys, $RRDp::real, $RRDp::error_mode, $RRDp::error
DESCRIPTION
With this module you can safely communicate with the RRDtool.
After every RRDp::cmd you have to issue an RRDp::read command to get RRDtools answer to your command. The answer is returned as a pointer,
in order to speed things up. If the last command did not return any data, RRDp::read will return an undefined variable.
If you import the PERFORMANCE variables into your namespace, you can access RRDtool's internal performance measurements.
use RRDp
Load the RRDp::pipe module.
RRDp::start path to RRDtool executable
start RRDtool. The argument must be the path to the RRDtool executable
RRDp::cmd rrdtool commandline
pass commands on to RRDtool. Check the RRDtool documentation for more info on the RRDtool commands.
Note: Due to design limitations, RRDp::cmd does not support the "graph -" command - use "graphv -" instead.
$answer = RRDp::read
read RRDtool's response to your command. Note that the $answer variable will only contain a pointer to the returned data. The
reason for this is, that RRDtool can potentially return quite excessive amounts of data and we don't want to copy this around in
memory. So when you want to access the contents of $answer you have to use $$answer which dereferences the variable.
$status = RRDp::end
terminates RRDtool and returns RRDtool's status ...
$RRDp::user, $RRDp::sys, $RRDp::real
these variables will contain totals of the user time, system time and real time as seen by RRDtool. User time is the time RRDtool
is running, System time is the time spend in system calls and real time is the total time RRDtool has been running.
The difference between user + system and real is the time spent waiting for things like the hard disk and new input from the Perl
script.
$RRDp::error_mode and $RRDp::error
If you set the variable $RRDp::error_mode to the value 'catch' before you run RRDp::read a potential ERROR message will not cause
the program to abort but will be returned in this variable. If no error occurs the variable will be empty.
$RRDp::error_mode = 'catch';
RRDp::cmd qw(info file.rrd);
print $RRDp::error if $RRDp::error;
EXAMPLE
use RRDp;
RRDp::start "/usr/local/bin/rrdtool";
RRDp::cmd qw(create demo.rrd --step 100
DS:in:GAUGE:100:U:U
RRA:AVERAGE:0.5:1:10);
$answer = RRDp::read;
print $$answer;
($usertime,$systemtime,$realtime) = ($RRDp::user,$RRDp::sys,$RRDp::real);
SEE ALSO
For more information on how to use RRDtool, check the manpages.
AUTHOR
Tobias Oetiker <tobi@oetiker.ch>
perl v5.16.3 2014-06-10 RRDp(3)