As the title suggests, I'm looking for an online Perl executor. Yes, I know http://codepad.org/ and http://ideone.com/ can execute Perl scripts online, but I'm looking for something different, so please let me tell you exactly what I'm doing:
I wish to retrieve information from a website say, every 10 or 15 minutes. The information is plain text, and not very big in size. The problem is, that I want to do that for a long period of time, and not always can I leave the computer open for it to run. So what I thought about, is that maybe such a service exists, to which you enter a code, and it starts executing it, while simultaneously printing the current result. I will be given a unique address, and every time I visit it I will see the program's progress.
Does such a thing exists? How can I do what I wish to do?
Thank you in advance.
One option you have is renting some hosting with a provider that allows you to run a perl script through cron.
Here are a few cloud providers which support Perl. dotcloud claims to have a free tier.
Related
I'm new to Apama. I see that a com.apama.file lib exists, but I am unsure how to actually use it to read a file. I want to send each line as an event to be parsed and then depending on the contents sent as a different event from there, but googling suggests that I'd need a transport (not sure what that is either) to do so, but my project lead is under the impression that this can all be done using Apama EPL. How true is this and if it has some validity, how can I go about achieving that?
Yes, this is certainly possible. To help you do it, though, please can you provide a little more information about your setup? For example, what is the file type and is the file local to where the correlator will be running? Will there only be one file to process at a time? How large is the file, and are there any specific performance requirements?
You may find this helpful:
https://github.com/SoftwareAG/apama-streaming-analytics-connectivity-FileTransport
You don't say quite what you are trying to achieve, but if you are new to Apama then I will say that that is not something that is done frequently, especially in simpler solutions when your are just starting.
Depending what you are trying to achieve, are you aware of the "engine_send" tool and the ability to use it to send in a text file of Apama events (normally a .evt file), and with batch tags if you want spread them over time?
http://www.apamacommunity.com/documents/10.5.3.0/apama_10.5.3.0_webhelp/apama-webhelp/apama-webhelp/re-DepAndManApaApp_sending_events_to_correlators.html
http://www.apamacommunity.com/documents/10.5.3.0/apama_10.5.3.0_webhelp/apama-webhelp/apama-webhelp/co-DepAndManApaApp_event_file_format.html
I'm unsure if what I'm trying to do is possible. I have a PowerShell script that takes three arguments. In a perfect world, I'd collect the necessary information in a web form and pass it to the script, which would then run.
I don't know if this is even possible, but I can't find anything that definitively tells me no. I'd need it to be cross-browser capable (we have some Macs) so I can't just do an IE-only fix.
This is also internal only, so I'm less concerned about some security risks. It will be behind our firewall.
Thanks.
Not sure to understand the question, but for collecting the necessary information in a web form and pass it to the script, which would then run I user PowerShell Web Server (tag : poshserver in stackoverflow). Sources are available, so I even implements Jobs for long scripts.
I'm a novice with AS/400. I have a bit of coding experience and know that there's always an access to the backend if you're clever enough. But developers in my organisation said that it's hard to communicate with the server and make it run things remotely.
So I'm wondering if you anyone's got any ideas how I can schedule a simple task. I login to the "Personal Communication", which is the client app. Then I go to a certain menu, ie I543, enter a parameter "1". And Press "ENTER" to run a report which have a file output.
I know there is that "Macro" function within Personal Communication. But that relies on send keys which does not work on a locked screen, nor do I want to activate it manually, which really defies the point of automation.
I was hoping I can schedule a simple call command somehow to activate some kind of procedure. Just need to know if possible and where to start looking? Thanks.
Last millennium's AS/400 and today's IBM i both have a basic job scheduler built in.
From a command line WRKJOBSCDE.
You need to find out what happens when you select menu I543 option 1. Assuming it's a simple CALL MYRPT or SBMJOB CMD(CALL MYRPT) then adding a scheduled job to run the report is easy.
However, you probably don't have the authority to do so. Nor should your developers necessarily be able to do so. Your system administrator is the right person. In a small shop, that might be the guy doing development. In a large one, it's another person or team.
But your developers should have at least pointed you toward the admin and the job scheduler.
We have a memcached server that is shared by about two dozen apps. One of the web apps (or perhaps one of our utility apps) is issuing a flush_all command periodically. The frequency seems random, or at least we haven't seen a pattern yet. It happens about 10 times an hour.
Here's the rub. I can't figure out a good way to figure out which app is doing this. The memcacehd logs are not helpful at all. Here's what I've done so far:
* grep all source code - Other than memcached libraries I can't see anywhere where we issue this command.
* Enable verbose logging (-vv) in memcached - I see the commands get issued, but the log doesn't show any information about where the command is being issued from.
* Research how to administratively disable this; without an unapproved source patch to memcached I can't figure out a good way to do it.
Has anyone else had this problem? I'm assuming that this is coming from one of our web apps, but its possible its from somewhere else too. Any suggestions?
My next step is to setup a second memcached server and move applications one by one (which will be slow and time consuming). There must be a better way.
A little late, but in case anyone else hits this...
I'd suggest you set up multiple memcache proxies and configure each application to use a different one. The first proxy I found was twemproxy, no idea how good it is.
After that you can use the logs for the proxy to identify which application is issuing the commands.
I'm attempting to move a web app we have (written in Perl) from an IIS6 server to an IIS7.5 server.
Everything seems to be parsing correctly, I'm just having some issues getting the app to actually work.
The app is basically a couple forms. You fill the first one out, click submit, it presents you with another form based on what checkboxes you selected (using includes and such).
I can get past the first form once... but then after that it stops working and pops up the generated error message. After looking into the code and such, it basically states that there aren't any checkboxes selected.
I know the app writes data into .dat files... (at what point, I'm not sure yet), but I don't see those being created. I've looked at file/directory permissions and seemingly I have MORE permissions on the new server than I did on the last. The user/group for the files/dirs are different though...
Would that have anything to do with it? Why would it pass me on to the next form, displaying the correct "modules" I checked the first time and then not any other time after that? (it seems to reset itself after a while)
I know this is complicated so if you have any questions for me, please ask and I'll answer to the best of my ability :).
Btw, total idiot when it comes to Perl.
EDIT AGAIN
I've removed the source as to not reveal any security vulnerabilities... Thanks for pointing that out.
I'm not sure what else to do to show exactly what's going on with this though :(.
I'd recommend verifying, step by step, that what you think is happening is really happening. Start by watching the HTTP request from your browser to the web server - are the arguments your second perl script expects actually being passed to the server? If not, you'll need to fix the first script.
(start edit)
There's lots of tools to watch the network traffic.
Wireshark will read the traffic as it passes over the network (you can run it on the sending or receiving system, or any system on the collision domain).
You can use a proxy server, like WebScarab (free), Burp, Paros, etc. You'll have to configure your browser to send traffic to the proxy server, which will then forward the requests to the server. These particular servers are intended to aid testing, in that you'll be able to mess with the requests as they go by (and much more)
As Sinan indicates, you can use browser addons like Fx LiveHttpHeaders, or Tamper Data, or Internet Explorer's developer kit (IIRC)
(end edit)
Next, you should print out all CGI arguments that the second perl script receives. That way, you'll know what the script really thinks it gets.
Then, you can enable verbose logging in IIS, so that it logs the full HTTP request.
This will get you closer to the source of the problem - you'll know if it's (a) the first script not creating correct HTML, resulting in an incomplete HTTP request from the browser, (b) the IIS server not receiving the CGI arguments for some odd reason, or (c) the arguments aren't getting from the IIS server and into the perl script (or, possibly, that the perl script is not correctly accessing the arguments).
Good luck!
What you need to do is clear.
There is a lot of weird excess baggage in the script. There seemed to be no subroutines. Just one long series of commands with global variables.
It is time to start refactoring.
Get one thing running at a time.
I saw HTML::Template there but you still had raw HTML mixed in with code. Separate code from presentation.