PERL cgi script... extra character driving me crazy
I'm using a PERL cgi script that uses rrdtool to make graphs. I can't get the syntax correct to use a degree sign (alt+0176 like this °) and also using a variable.
If I use single quotes, I can't call the variable. If I use double quotes, there is an extra symbol (Â) before the ° which goes away if I use double quotes without the variable.
A picture is worth 1000 words (I circled the error in pink):
Here is the relevant line of code that produces that extra letter:
Hi, I've created a script in csh that takes a file and checks it for mispelled words. Im almost done but I need to do two more things but I need help.
First, when displaying an incorrect word to the user, I need to show the line of the input file that contains the word.
Second,if the user... (0 Replies)
Hi everyone,
Is there anywhere I can find a complete table of all characters that must be escaped by the various UNIX shells and scripting languages?
It seems every command/shell/scripting language has different rules about what characters must be escaped.
I do a lot of searching and... (3 Replies)
Ok so I am working on a command that is going to do a Dig @ a certain IP address which is enclosed in a variable.
Now I thought I had this figure out because it works. The problem is that it does not ALWAYS work.
the variable is IP=192.168.1.1
the commands I have tried are
dig... (2 Replies)
Hello,
Met a problem learning perl cgi script.
1 #!/usr/bin/perl -wT
2
3 use strict;
4 use CGI qw(:standard);
5
6 my $q = new CGI;
7
8 my $filename = $q->param('/home/yifangt/hello.cgi');
9 my $contenttype = $q->uploadInfo($filename)->{'Content-Type'};
10... (5 Replies)
Hello there,
first of all: I do not want to become a hacker. you cannot do that. you cannot learn that from a book.
Don't think I'm some kind of a script-kiddie.
now that's settled let's start.
I've been trying around with a lot of OS lately.
I have backtrack5 installed on my notebook,... (10 Replies)
Can anyone tell me how to export a variable from one perl CGI script to another perl cgi script when using a redirect.
Upon running the login.pl the user is prompted to enter user name and password. Upon entering the correct credentials (admin/admin) the user is
redirected to welcome page.
My... (3 Replies)
Hi All,
I am aware that html tags can be embedded in cgi script as below.. In the same way is it possible to embed the below javascript in perl cgi script ??
print("<form action="action.htm" method="post" onSubmit="return submitForm(this.Submitbutton)">");
print("<input type = "text"... (1 Reply)
Hi team,
I have a typical problem with cgi pages in apache webserver in WINDOWS
I am able to execute(display) the pages that are saved in cgi-bin folder.
But I am not able to execute the pages stored in htdocs or other folder other than cgi-bin folder.
Could anyone please let me know how... (1 Reply)
Hi All,
I have written an cgi perl script that displays an image(Excel image) and when clicked on that Image I need to download a excel sheet.
I made sure that excel sheet exists in the folder with the given name but still I am not able to download the sheet.
print "<center><table... (2 Replies)
Discussion started by: scriptscript
2 Replies
LEARN ABOUT DEBIAN
mrtg-rrd
MRTG-RRD(1) mrtg MRTG-RRD(1)NAME
mrtg-rrd - How to use RRDtool with MRTG
SYNOPSIS
After using MRTG for some time you may find some limitations, mostly in the areas of performance and graphing flexibility. These are
exactly the areas addressed by RRDtool. To learn more about RRDtool check out its website on
http://oss.oetiker.ch/rrdtool
RRDTOOL INTEGRATION
When using mrtg with RRDtool you are replacing rateup with the RRDtool perl module RRDs.pm. To enable RRDtool support in mrtg you have to
add the line
LogFormat: rrdtool
to your mrtg config file.
MRTG needs access to both the RRDtool perl module RRDs.pm and to the rrdtool executable.
If these two items are not installed in locations where perl can find them on its own, then you can use the following two parameters to
supply the appropriate directories.
For the location of the rrdtool executable you put
PathAdd: /usr/local/rrdtool/bin/
or
PathAdd: c:
rdtoolin
For the location of the perl module it would be:
LibAdd: /usr/local/rrdtool/lib/perl/
or
LibAdd: c:
rdtoolinlibperl
When you have made this modification to the configuration file, several things will happen when you run mrtg again with the new config
file:
1. mrtg will take all your old ".log" files and convert them to ".rrd" format. (The ".log" files don't get touched in the process, so if
things don't work out they are still there.)
2. mrtg will use rrdtool to update its databases. These will have a new format called rrd which is totally different than the native log
format of the classic mrtg.
3. mrtg will not create any webpages of graphs anymore. It will only query the routers for traffic information and update its rrd
databases.
The advantage of whole thing is that the mrtg will become much faster. Expect the runtime to drop to 20% of the previous value. (I would
like to get some feedback on this from folks with large installations.)
Mind you, though, while the logging process of RRDtool is very fast, you are also gaining some time by neither creating graphs nor updating
webpages. The idea behind this is that it is more efficient to create graphs and webpages on demand by using a cgi script.
At the moment there is no official script to do this, but two contributers have created such scripts:
One4All aka 14all.cgi
This was the first program to take over the webpage creation and graphing task. It has been developed by Rainer Bawidamann
rainer.bawidamann@web.de. You can find a copy on Rainers website: http://my14all.sourceforge.net/ The program comes with its own
documentation
routers2.cgi
This is another CGI frontend for mrtg running with rrdtool. The main difference between this and 14all is that the web pages it creates
are much more stylish than the ones from mrtg, plus they support User Defined summary graphs and different levels of Authentication and
Authorisation. This has been written by Steve Shipway (steve@steveshipway.org). You obtain a copy, and find a forum and demonstration
system at http://www.steveshipway.org/software/ The program comes with its own installation instructions and install script.
mrtg-rrd
The mrtg-rrd script is a CGI/FastCGI application by Jan "Yenya" Kasprzak for displaying MRTG graphs from data in the RRDtool format. It
is an intended replacement for the 14all.cgi script. It can make your monitoring system faster because MRTG does not have to generate
all the PNG files with graphs every 5 minutes or so. Instead of this the graphs are generated on-demand when the user wants to see
them. http://www.fi.muni.cz/~kas/mrtg-rrd/
FUTURE
Just as a side note: MRTG-3 will be based entirely on rrdtool technology. But don't wait for it ... get going now!
AUTHOR
Tobias Oetiker <tobi@oetiker.ch>
2.17.4 2012-01-12 MRTG-RRD(1)