I guess you cannot have crontab entry in terms of seconds.But you can create a script which would repeatedly run your script and give an interval of 30 seconds. For eg, create a tmp.sh script which would run your desired script (say script1.sh) after every 30 seconds. Your tmp.sh script would look like #!/bin/sh script1.sh sleep 30 script1.sh sleep 30 script1.sh Make an entry in the crontab to execute this script every minute. This should solve the purpose. If anyone comes up with a better idea, feel free to go ahead with that, but this is a workaround, if you are stuck. Thanks! Rohit Khaladkar. On Mon, Apr 20, 2009 at 2:17 PM, ~~~0Pen ~~~ S0uRce ~~~ <vijay1313@xxxxxxxxx > wrote: > Hi guys, > Do any one have idea that how can i configure crontab > to run a script after every 30 seconds,i know about default parameters of > crontab and tried google also,but could not find any thing. > > Any suggestion Please !!!! > > > > -- > ~~~ 0Pen ~~~ S0uRce ~~~ > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list