A little bit of lateral thinking here.
Instead of relying on the accuarcy of the cron job's timings why not create a shell script and let it run in the backround, OR, inside a visible terminal continuously...
Code:
#!/bin/sh
variable="The quick brown fox jumps over the lazy dog."
epochtime=$(date +%s)
newtime=$[ ( $epochtime + 10 ) ]
echo "$variable" > /tmp/sometext.txt
while true
do
epochtime=$(date +%s)
if [ $epochtime -le $newtime ]
then
read text < /tmp/sometext.txt
variable=$text
echo "Epochtime $epochtime = $(date)."
echo "$text"
echo "$variable"
sleep 0.5
else
echo ""
echo "Setting new time slot 10 seconds later..."
echo ""
epochtime=$(date +%s)
newtime=$[ ( $epochtime + 10 ) ]
fi
done
Results using the "sleep 0.5" in the code...
Apologies for the long printout...
Code:
Last login: Thu Dec 12 02:55:23 on ttys000
AMIGA:barrywalker~> chmod 755 timejob.sh
AMIGA:barrywalker~> ./timejob.sh
Epochtime 1386817822 = Thu 12 Dec 2013 03:10:22 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817822 = Thu 12 Dec 2013 03:10:22 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817823 = Thu 12 Dec 2013 03:10:23 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817823 = Thu 12 Dec 2013 03:10:23 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817824 = Thu 12 Dec 2013 03:10:24 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817824 = Thu 12 Dec 2013 03:10:24 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817825 = Thu 12 Dec 2013 03:10:25 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817825 = Thu 12 Dec 2013 03:10:25 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817826 = Thu 12 Dec 2013 03:10:26 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817826 = Thu 12 Dec 2013 03:10:26 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817827 = Thu 12 Dec 2013 03:10:27 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817827 = Thu 12 Dec 2013 03:10:27 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817828 = Thu 12 Dec 2013 03:10:28 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817828 = Thu 12 Dec 2013 03:10:28 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817829 = Thu 12 Dec 2013 03:10:29 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817829 = Thu 12 Dec 2013 03:10:29 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817830 = Thu 12 Dec 2013 03:10:30 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817830 = Thu 12 Dec 2013 03:10:30 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817831 = Thu 12 Dec 2013 03:10:31 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817831 = Thu 12 Dec 2013 03:10:31 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817832 = Thu 12 Dec 2013 03:10:32 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817832 = Thu 12 Dec 2013 03:10:32 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Setting new time slot 10 seconds later...
Epochtime 1386817833 = Thu 12 Dec 2013 03:10:33 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817833 = Thu 12 Dec 2013 03:10:33 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817834 = Thu 12 Dec 2013 03:10:34 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817834 = Thu 12 Dec 2013 03:10:34 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817835 = Thu 12 Dec 2013 03:10:35 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817835 = Thu 12 Dec 2013 03:10:35 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817836 = Thu 12 Dec 2013 03:10:36 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817836 = Thu 12 Dec 2013 03:10:36 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817837 = Thu 12 Dec 2013 03:10:37 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817837 = Thu 12 Dec 2013 03:10:37 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817838 = Thu 12 Dec 2013 03:10:38 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817838 = Thu 12 Dec 2013 03:10:38 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817839 = Thu 12 Dec 2013 03:10:39 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817839 = Thu 12 Dec 2013 03:10:39 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817840 = Thu 12 Dec 2013 03:10:40 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817840 = Thu 12 Dec 2013 03:10:40 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817841 = Thu 12 Dec 2013 03:10:41 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817841 = Thu 12 Dec 2013 03:10:41 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817842 = Thu 12 Dec 2013 03:10:42 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817842 = Thu 12 Dec 2013 03:10:42 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817843 = Thu 12 Dec 2013 03:10:43 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817843 = Thu 12 Dec 2013 03:10:43 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Setting new time slot 10 seconds later...
Epochtime 1386817844 = Thu 12 Dec 2013 03:10:44 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817844 = Thu 12 Dec 2013 03:10:44 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817845 = Thu 12 Dec 2013 03:10:45 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817845 = Thu 12 Dec 2013 03:10:45 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817846 = Thu 12 Dec 2013 03:10:46 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817846 = Thu 12 Dec 2013 03:10:46 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817847 = Thu 12 Dec 2013 03:10:47 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817847 = Thu 12 Dec 2013 03:10:47 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817848 = Thu 12 Dec 2013 03:10:48 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817848 = Thu 12 Dec 2013 03:10:48 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817849 = Thu 12 Dec 2013 03:10:49 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817849 = Thu 12 Dec 2013 03:10:49 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817850 = Thu 12 Dec 2013 03:10:50 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817850 = Thu 12 Dec 2013 03:10:50 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817851 = Thu 12 Dec 2013 03:10:51 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817851 = Thu 12 Dec 2013 03:10:51 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817852 = Thu 12 Dec 2013 03:10:52 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817852 = Thu 12 Dec 2013 03:10:52 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817853 = Thu 12 Dec 2013 03:10:53 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817853 = Thu 12 Dec 2013 03:10:53 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817854 = Thu 12 Dec 2013 03:10:54 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Setting new time slot 10 seconds later...
Epochtime 1386817855 = Thu 12 Dec 2013 03:10:55 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
Epochtime 1386817855 = Thu 12 Dec 2013 03:10:55 GMT.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
^C
AMIGA:barrywalker~> _
Last edited by wisecracker; 12-11-2013 at 11:35 PM..
Reason: Typo...
Where can someone find info on Cron Jobs? Very new to UNIX and the PC I inherited looks to have several of them. Looks like they are some kind of background program that runs automatically at specified times. Would like to delete some of them and know more about them. (6 Replies)
Hi All,
i am trying to automate a process and have to create a unix script like wise. I have a scenario in which i need to automate a file movement. Below are the steps i need to automate.
1. Check whether a file (Not Fixed name-Pattern search of file say 'E*.dat') is present in a... (2 Replies)
Good Morning.
The problem started after tha migration to a newer version of oracle - migration to oracle 9i. Before the migration jobs that were scheduled in crontabs were running ok. but after the migration they are not running.
I understand that is not easy to find out what the problem is.... (4 Replies)
Hello,
I have problem in executing a shell script. When the shell script is executed at the shell prompt the script works successfully but when the same script is run as a cron job it fails to execute the files called within the shell script.
I have scheduled the job in my crontab file as
... (6 Replies)
Hi SunOS Experts
where will look up to correct the problem with my sunos, it normally shutdown on its own and reboot itself.
i am suspecting that somebody has scheduled it to be doing like that . which file can i look up to correct this problem.this is a server that is suppose to be up 24/7.... (2 Replies)
I had a cron file named mycron.cron and this file has cron jobs runs through out 365 days (jobs in the file mycron.cron run hourly, daily, weekly, monthly, quarterly and yearly). Is there an easy way to find what are the jobs scheduled today and what time they are scheduled to run?
Thanks in... (1 Reply)
There are two jobs in Solaris , Cron and at jobs..
I know how to disable or enable cron jobs.
How can I enable at jobs and disable it.
Kindly help.
Rj (2 Replies)
I've scheduled few jobs using cron. But they are not running .....
What might be the possible reasons ?? Also tell me how to troubleshoot.............
Please help me .......
Thanks in Advance. (2 Replies)
Team,
Hope you all are doing fine
I have one admin server which is being used dedicately to run cron jobs on hourly basis, fetching the details from Database which is in a different server.These cronjob are run on every hourly/5 minutes basis depending as per end user requirement.The script... (12 Replies)
12-11-2013