topic Re: Script to know that server time has a new date in Operating System - HP-UX

Script to know that server time has a new date

Deepu Chakravarty — Mon, 10 Aug 2009 05:29:21 GMT

Need a script which will tell that the server time has the clock time 12 midnight. The script should check when the 12 midnight has occurred in the server and print a message as soon as the server has the new day with midnight 12 a.m.

Please suggest.

Re: Script to know that server time has a new date

Stephan. — Mon, 10 Aug 2009 05:58:40 GMT

Hi,
what about setting up a cron job for it?

Re: Script to know that server time has a new date

Deepu Chakravarty — Mon, 10 Aug 2009 06:35:28 GMT

But what to write in cron job? The script is required.

Re: Script to know that server time has a new date

Stephan. — Mon, 10 Aug 2009 06:45:21 GMT

The question is what you want, a email to ?, a message to all user, an entry in a log file, ...

Usual crontab syntax would be:

0 0 * * *

for example insert a message to syslog.log:

0 0 * * * /usr/bin/echo "+++ Midnight +++" >> /var/adm/syslog/syslog.log

hth

Re: Script to know that server time has a new date

Deepu Chakravarty — Mon, 10 Aug 2009 08:12:39 GMT

This script you have provided will only append the text "Midnight" in syslog file. But my requirement is different. The script can be run as a cron job. I am restating my requirement as follows:
1. The cron job should check that midnight(12 a.m.) occurs in the server,
2. The cron job should immediately print in the file /tmp/midnight.txt the current time of the server.

Re: Script to know that server time has a new date

Dennis Handly — Mon, 10 Aug 2009 08:19:02 GMT

>But my requirement is different.

But once you know about crontab, you should be able modify it to do what you want.

>2. The cron job should immediately print in the file /tmp/midnight.txt the current time of the server.

0 0 * * * date > /tmp/midnight.txt

Re: Script to know that server time has a new date

Stephan. — Mon, 10 Aug 2009 08:48:58 GMT

>This script you have provided will only append the text "Midnight" in syslog file. But my requirement is different

Without any given information or requirements i can only answer with examples.

Perhaps a simple 'man cron' helps.

#man cron

NAME
cron - timed-job execution daemon

SYNOPSIS
/usr/sbin/cron

DESCRIPTION
cron executes commands at specified dates and times.

For the new requiremnts Dennis posted the correct answer.

Re: Script to know that server time has a new date

James R. Ferguson — Mon, 10 Aug 2009 10:48:13 GMT

Hi:

> Need a script which will tell that the server time has the clock time 12 midnight. The script should check when the 12 midnight has occurred in the server and print a message as soon as the server has the new day with midnight 12 a.m.

And that's because you're not sure if midnight will come every day?

...JRF...