Check out if Cron Jobs Work in Ubuntu Example
Open a terminal and switch to root user.
sudo su
Next
crontab -e
Choose your favorite console editor and remove all the lines there. Then write the following line which will store the date on the file /tmp/test.txt every minute.
*/1 * * * * date >> /tmp/test.txt
Save changes.
After one minute the file in /tmp/test.txt should contain the latest date.
tailf /tmp/test.txt
