while loop in terminal

evian · 08-17-2003, 05:45 PM

Hello,

I have a script that I want to run continuosly over and over again, I don't know perl so I don't know how to make the script itself do this, but I was wondering if there was a way to create a script telling the terminal to run the script over and over again.

thanks,

evan

jailbait · 08-17-2003, 08:38 PM

" I was wondering if there was a way to create a script telling the terminal to run the script over and over again."

This is an infinite loop in bash script:

while true
do

# code to execute your perl script

done

evian · 08-17-2003, 08:44 PM

Is there a command in the bash script to pause,

so that I could run the script every minute or so?

thanks

jailbait · 08-17-2003, 09:21 PM

Instead of running an infinite loop with a timed pause in it, I suggest that you use the cron feature of Linux. You can tell cron to run your perl script once a day or every 3 minutes or whatever.

You can get documentation on cron with:

man cron

man crontab

evian · 08-17-2003, 10:10 PM

Thanks, I can see that crontab is definitly my solution, but i've ran into one snag. I'm not really familiar with vi and when I try to add the script to be run I get lost on how to do this, just wondering if you knew something that could show me how to use this editor.

thanks,

jailbait · 08-18-2003, 09:17 AM

" I'm not really familiar with vi"

Neither am I. I have never used vi. Here is a vi tutorial.

http://math.la.asu.edu/vi_tutorial/vi3.html

For a command line editor I use mp:

http://www.triptico.com/software/mp.html

jspenguin · 08-18-2003, 12:16 PM

Try Emacs.
Type emacs in the shell, then hit CTRL-H CTRL-T to get the tutorial.