Scheduler/VB6 program running in Fedora

[pu8y]

Hi all,

I have made a vb6 porgram, it is running without any error in windows platform. However, i want it to be run at Fedora too. I run my program with Wine Windows Program Loader in a Linux pc, but the program stuck with an error message:

Run-time error '429':
ActiveX component can't create object

I thought it was the error message because of missing some dll/reference files, so I tried to copy all those related .dll & .ocx file into my wine file. (Just copy and paste into the system32 of wine, no regsvr32 statement to register the .dll as what we always do in Windows.) However, all my efforts are in vain. I not sure what is the cause of this error. Anybody can give me a hint on this issue?

p/s: My purpose to run the vb6 program in linux is because I want to make a scheduler in linux pc so that this program can be run once per day automatically and send email. Any suggestion on how to achieve this also are welcome. I am lost... Many many thanks!

[coopstah13]

VB is a windows programming environment for writing programs that run on windows, not linux. Wine is not foolproof, not everything works and things that do work might not work in their entirety. Why would you need a windows application to schedule in a linux PC when you can use a native application (cron) that is the defacto standard?

[pu8y]

This was just my piece of idea, because I am totally new to Linux and i used to use this vb6 program to run a schedule task in my windows PC.

Ok, I'll take a look in cron to see how it is running.

My purpose to make a schedule task in linux is so that I can check the condition from database once per day, and send email to those person-in-charge. Can cron achive this solution?

[coopstah13]

Cron is simply a scheduler, you can have it run anything you want to for the most part. You can tell it to run an application or script that does what you want.

[Rubberman]

You should be able to create a shell script easily enough to do what you want, and then use cron to schedule it to run as you wish. In any case, you'd have to run a VB application in the Wine environment and it does not do well for many applications. I would certainly never use VB to run applications in Linux. In fact, I prefer never to use VB at all given its many limitations and Windows-centric orientation.

[pu8y]

I created a simple "Hello Perl" script and just for testing purpose to see whether the cron works.

When i type ps aux | grep crond, I get this:
root 2145 0.0 0.1 5260 788 ? Ss Nov16 0:00 crond
admin 11098 0.0 0.1 4216 712 pts/0 S+ 09:58 0:00 grep crond
root 27812 0.0 0.2 5260 1220 ? Ss Nov17 0:00 crond

Then, I type : 01 * * * * perl /etc/perl/testing.pl
it returns: bash: 01: command not found

What is my problem?
If I run the script with perl etc/perl/testing.pl, it works with HELLO PERL printing.

[Rubberman]

Try using the full path for perl in the crontab, usually /usr/bin/perl.

[pu8y]

Ok, now I have edit my crontab file to be :

SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
#MAILTO=root
HOME=/

# run-parts
*/5 * * * * root /usr/bin/perl /etc/test.pl

Which the test.pl insert the date time NOW() into the database table. I want it to be run every 5 minutes so that I can see an immediate result.

Unfortunately, my cron job execute with an imperfection. That is, every 5 minutes, it insert the record twice.

checkdate
2009-11-18 16:45:01
2009-11-18 16:45:01
2009-11-18 16:50:05
2009-11-18 16:50:05
2009-11-18 16:55:02
2009-11-18 16:55:02

But if i run my perl script seperately, it works fine with only one record inserted.

[Rubberman]

My guess is that you have 2 cron jobs scheduled.

[pu8y]

I think so...
Ok i'll continue to trace it, thanks everyone!