continuous running a pl script

sikkalgopal · 02-16-2005, 11:57 PM

Hi all,
i want to run a pl script continuously say every 3 min in my redhat 9.0 box what to do?
Thanks in advance

secesh · 02-17-2005, 12:23 AM

put it in your crontab

ogmoid · 02-17-2005, 01:14 AM

I think you could add

Code:

sleep 180;

To your loop to achieve this.
You might also try alarm

For usage info see:
perldoc -f sleep
or
perldoc -f alarm

heema · 02-17-2005, 03:38 AM

i made a script to continuously run every 5 min. in bash by making an infinite while loop and sleep 300

here it is to get an idea :

Code:

#!/bin/bash
#
# Apollon check script
#
#
# To use it type :  ./check.sh filename
#

# Take the value that you entered and puts it in this variable
FILENAME=(*."$1"*)

# Checks the folder your in for the filename , its not used
FILENAME2=$(ls | grep "$1")

FILENAME3=${FILENAME2#*.}

echo "FILENAME = $FILENAME"

# echo "FILENAME2 = $FILENAME2"

echo "FILENAME3 = $FILENAME3"

echo -e "\033[0;31mRunning script now\033[0m"

while true; do

if [ -f "$FILENAME3" ]; then

    echo "File $FILENAME3 downloaded"  | mutt -s "File downloaded" myemail@gmail.com
    exit

elif [ -f "$FILENAME" ]; then

    echo "File $FILENAME is still being downloaded"

else
    echo "File not found"
    exit
fi

sleep 300       # sleeps for 5 minutes then checks again
done

secesh · 02-17-2005, 08:58 AM

your system does things for a reason. getting in the habit of running tasks in the background with sleep states will make your system bloated. use cron

ogmoid · 02-17-2005, 11:07 AM

Quote:

Originally posted by secesh
your system does things for a reason. getting in the habit of running tasks in the background with sleep states will make your system bloated. use cron

Hear hear!

If it's just going to get ran occasionally (ie. one user; while they're logged in) then sleeping the script makes more sense to me, especially since the repeat is fairly short.

I, whole heartedly, agree with you in general.

sikkalgopal · 02-19-2005, 05:05 AM

Hi all
i added in crontab as */5 in the minute filed.now its working great .