how to schedule my task
john.francis at gmail.com
Wed Dec 28 11:01:28 UTC 2005
On 26 Dec 2005 06:58:40 -0000, Navdeep <singh_nav00 at rediffmail.com> wrote:
> On Sun, 25 Dec 2005 gb spam wrote :
> > > I created a GUI application on QT 3.1 on red HAT LINUX. Now i want to run this application automatically just after log in as ROOT. How can i do this . If I want to run my application daily at 4:30 PM then what to do for it.
> > >
> > > I tried it using cron but could not successful . Any idea will be appriciable.
> >cron does not have a display associated with it, so your gui app will
> >die. check root's mail, by default all output (errors in this case)
> > from the job will be mailed to the user.
> >you could try the following:
> >in the script, but you'll need to do some xhost stuff for each user
> >that may be logged in on the GUI.
> OK , I have no idea to write AND COMPILE THE scripting language.
> But i tried in below fashion at sch.sh file
> sh /root/QT/QTDesigner/scheduler/scheduler
> Now i tried to run it by # sc sch.sh but it says
> : cannot execute binary file
> How to come out this problem
You are succesfully calling the script but it is failing when it
reaches the second line.
In your script you call your binary QT application as:
This will definitely not work and that is the cause of your "cannot
execute binary file" message.
If I understand correctly, scheduler is not a shell script.
Therefore, when calling it in a script all you need to do is
If you call "sh <file>" then the sh shell will try to open the file
and execute it as a shell script.
Also, you will need to set any environment variables _before_ calling
I would rewrite your script like this:
# end of script
BTW, I agree with other posts suggesting that writing a GUI app to run
a scheduled task is a bad idea. You have no idea if :0.0 will be a
valid display when the script is run, also, you won't know to whom it
More information about the fedora-list