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How to add cron job in /etc/crontab


 
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# 1  
Old 01-27-2011
How to add cron job in /etc/crontab

Hi,
How to add a cron job in /etc/crontab using a shell script.??Smilie
Actually the requirement is we need to run a script say, XXX.sh every 10 min through “cron”.
That can be achieved by adding the below code line in the /etc/crontab , (i.e., “crontab -e ” command to add this to the crontab in a particular server.)
"0-59/10 * * * * XXX.sh"
But when I changed the server, I need to add the same code line in the crontab of that particular server.
So instead of doing the same many times, when I run a particular script in that particular server, that line should be added in the crontab of that particular server.Smilie
Thanks in advance.

Last edited by Yogesh Sawant; 01-27-2011 at 07:41 AM.. Reason: changed the subject to something appropriate
# 2  
Old 01-27-2011
Code:
#
# write the current crontab to a file.
#
crontab -l > crontab.txt

#
# append the new command to the file.
#
echo "new command" >> crontab.txt

#
# replace the current crontab with the new one.
#
crontab crontab.txt

This User Gave Thanks to jsmithstl For This Post:
# 3  
Old 01-27-2011
Thank you jsmithstl.... Its working for me now...
# 4  
Old 01-27-2011
Or you can execute
crontab -e to edit directly the cronjobs.
# 5  
Old 01-27-2011
Thanks for ur reply @dagio. But I actually need that to be done through the shell script.
I got it almost.

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