CODEWITHSUNDEEP
dateunixscheduled-taskscron
user3190153
user3190153

Reputation: 39

Changing a Unix server date with a scheduled job

I am looking for a way to schedule a set of commands on a unix server. The server time is in UTC. I essentially want to perform the below steps automatically every Wednesday at 4pm UK time:

The below commands are what I currently run manually:

date -s "Thu Feb 09 00:01:00 UTC 2017" (represents the next day at 1 minute past midnight)
service tomcat restart
sudo -u tomcat java -jar Test.jar -type "Major" -status "Active"
date -s "<the current UTC time>"
service tomcat restart

I understand we can use cron to schedule the running of a script, but unsure how to do this. Any help is appreciated.

Upvotes: 0

Views: 555

Answers (1)

Bogdan Stoica
Bogdan Stoica

Reputation: 4529

Create a file called called unix-server-date.sh and save it in /opt for example. The script will have this content:

#!/bin/bash
date -s "Thu Feb 09 00:01:00 UTC 2017" (represents the next day at 1 minute past midnight)
service tomcat restart
sudo -u tomcat java -jar Test.jar -type "Major" -status "Active"
date -s "<the current UTC time>"
service tomcat restart

Make the script executable:

chmod +x /opt/unix-server-date.sh

Then issue crontab -e to edit the crontab entries and add an entry like:

00 16 * * 3 /opt/unix-server-date.sh

Depending on your editor, after you have added the crontab entry please save the file and the crontab will be automatically installed.

That would be the basics!

If you run those commands from a specific user account you should add the cronjob to that user's crontab. Change crontab -e to crontab -e -u user

Upvotes: 1

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