Dear Friends ,

I try to execute below three lines as a script . Individually script is running fine but as a crontab , it is not working properly .

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cat ntp.sh
#!/bin/bash
service ntpd stop
sleep 5; /usr/sbin/ntpdate -s pool.ntp.org
sleep 5; service ntpd start
------------------------------

Using crontab, last two lines are executing fine but first line is not executing . Would anybody please help me regarding this ?

To be honest, I'm not surprised your not seeing the output from the first line. CRON scripts run in the *background*, not the foreground.

And in addition, even if it did run in the foreground, unless it's a GUI based program, you still would not have a GUI window pop-up and display your ntp.sh file.

You have not said which Linux distribution you are talking about. So it's not easy to help without knowing that.

Edit: You have also got the 'shebang' (#!/bin/bash) line as the second line in your script, it HAS to be the first line.

Thanks it is working now ...

#!/bin/bash
/etc/init.d/ntpd stop
sleep 5; /usr/sbin/ntpdate -s ntp.org
sleep 5; /etc/init.d/ntpd start

Although your cron script problem has been solved there should be no reason if ntp is working correctly to force a time correction using ntpdate.