I'm trying to make a crontab with crontab -e, but it saves it in tmp/crontab.FTt6nI/crontab
the crons don't work so I guess that's the problem. But I don't understand why.
type:
crontab -l
to show list of crontab, your newly added crontab should be on the list. you could set the crontab to email the output to you by > youremail#aaa.com, in this way you can assure the cronjob is already run.
example:
* * * * * /usr/bin/php /home/username/public_html/cron.php > aaa#aaa.com
make sure the crond is running:
/etc/init.d/crond status
if it down, start it (centos/rhel):
/etc/init.d/crond start
debian/ubuntu:
/etc/init.d/cron start
hope that help.
Related
I've tried a range of combinations for adding a cron job. I can't tell if there is a problem with my cron command, or if it's something about the users on the server. Currently I've added this cron to run under sudo. I'm confident the path to php and path to my cron are correct, and when I visit that cron.php file it stores the time() in a log so I know that part works... also permissions are 755 on the cron.php file.
*/1 * * * * /opt/bitnami/php/bin/php /opt/bitnami/apache2/htdocs/cron.php cron:run
I've tried adding this cron using sudo crontab -e, sudo crontab -u root -e, crontab -e. I've also tried combinations where the user is state in the cron command like:
*/1 * * * * sudo /opt/bitnami/php/bin/php /opt/bitnami/apache2/htdocs/cron.php
*/1 * * * * root /opt/bitnami/php/bin/php /opt/bitnami/apache2/htdocs/cron.php
*/1 * * * * bitnami /opt/bitnami/php/bin/php /opt/bitnami/apache2/htdocs/cron.php
So far no combination works, and there are no errors in the server log.
I've tried restarting cron with sudo /etc/init.d/cron stop, sudo /etc/init.d/cron start. The start/stop works so I'm sure cron is running... but I'm not sure if cron runs as "root", "sudo" or "bitnami"?
I've modified the crontab with:
sudo crontab -e
and added a cron for a script to run every minute so I can test if it works:
1 * * * * /scripts/backup-script.sh > /scripts/backup-script.logs
Afterwards, I tried to restart the cron service to restart the server but the cron doesn't seem to be working, I tried to use:
crontab -l
and it appears to have the old content as if I didnt even modify it. However, going into crontab -e does show the updated content.
To make your script run every minute your cron record must be:
* * * * * /scripts/backup-script.sh > /scripts/backup-script.logs
What you enter will run every 1st minute every hour
And if you add record via crontab command you do not need to touch cron daemon
To see the cron record you add with sudo crontab -e you must check it with command sudo crontab -l. Otherwise you list cron record of different user
I'm running RHEL and I'm trying to set up a cron job to run a shell script every 5 minutes.
Following the directions here: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/ch-Automating_System_Tasks.html#s2-configuring-cron-jobs
I have service crond start and chkconfig crond on. Then I edited /etc/crontab and added:
*/5 * * * * my-user /path/to/shell.sh
I did a chmod +x shell.sh. And I made sure to add a new line character at the end.
I'm expecting it to run every 5 minutes but it never executes.
What am I doing wrong?
Simply try to add the cronjob entry and check the script is working fine or not by taking the viewable output in the script.
echo "test time - $(date)" > script.sh
chmod +x script.sh
crontab -e
Then enter the cronjob as below,
*/5 * * * * sh /path/to/script.sh > /path/to/log.file
Check if the log is writing correctly. If its fine, better cross check the script that you are trying to execute via cron. Otherwise it will be a cron issue.
I am hosting Tiny Tiny RSS site hosted on
Amazon Linux AMI
To update the feed automatically I have to run the following Cron job.
Reference
http://tt-rss.org/redmine/projects/tt-rss/wiki/UpdatingFeeds
*/30 * * * * /usr/bin/php /var/www/html/tt-rss/update.php --feeds --quiet
Here is the step I did:
sudo su
cd /etc
crontab -e
# add this line
*/30 * * * * /usr/bin/php /var/www/html/tt-rss/update.php --feeds --quiet
But I still got the message "Update Daemon is not running".
May I know, is this correct step for Cron job?
You should enter these commands on Amazon Linux 2:
sudo systemctl start crond
sudo systemctl enable crond
This sounds like crond is not running. In which case:
service crond start
chkconfig crond on
You should first inspect the cron log file /var/log/cron and look for any errors. This will probably give you the answer. Also make sure you can run the command successfully on the command line (/usr/bin/php /var/www/html/tt-rss/update.php --feeds --quiet).
Please check the spaces, it could be because of spaces are not placed correctly
Simply do : * * * * * wget -o - -q -t 1 "your url with cron file"
Please remove the "--quiet" part from your cron command and check the log and feed again
I'm using a Raspberry Pi for a status display, but for whatever reason it gets incredabbly sluggish after a day or so of running so I wanted to reboot it every day so I setup a cron job to do that every morning at 8:50. But, it doesn't seem to be working. Is there anything special about using cron to do a reboot?
This is my crontab for the root user:
# m h dom mon dow command
50 8 * * * shutdown now -r >> /var/log/cron.log
0,30 * * * * date >> /var/log/cron.log
The second line works just fine, but I can't seem to get the restart command to work. It doesn't even output anything to the log.
Try using the fully specified path to shutdown. date may be in the PATH in roots cron environment, /sbin may not be looked up.
You need to edit the root user crontab
sudo crontab -e
then..
50 8 * * * reboot
Save and exit.