Restarting cron after changing crontab file? [closed]
Question
Do I have to restart cron after changing the crontable file?
Solution
No.
From the cron man page:
...cron will then examine the modification time on all crontabs and reload those which have changed. Thus cron need not be restarted whenever a crontab file is modified
But if you just want to make sure its done anyway,
sudo service cron reload
or
/etc/init.d/cron reload
OTHER TIPS
On CentOS with cPanel sudo /etc/init.d/crond reload
does the trick.
On CentOS7: sudo systemctl start crond.service
I had a similar issue on 16.04 VPS Digital Ocean. If you are changing crontabs, make sure to run
sudo service cron restart
Depending on distribution, using "cron reload" might do nothing. To paste a snippet out of init.d/cron (debian squeeze):
reload|force-reload) log_daemon_msg "Reloading configuration files for periodic command scheduler" "cron"
# cron reloads automatically
log_end_msg 0
;;
Some developer/maintainer relied on it reloading, but doesn't, and in this case there's not a way to force reload. I'm generating my crontab files as part of a deploy, and unless somehow the length of the file changes, the changes are not reloaded.
try this one for centos 7 : service crond reload
Try this out: sudo cron reload
It works for me on ubuntu 12.10
Try this: service crond restart
, Hence it's crond
not cron
.
There are instances wherein cron needs to be restarted in order for the start up script to work. There's nothing wrong in restarting the cron.
sudo service cron restart
Commands for RHEL/Fedora/CentOS/Scientific Linux user
Start cron service
To start the cron service, use:
/etc/init.d/crond start
OR RHEL/CentOS 5.x/6.x user:
service crond start
OR RHEL/Centos Linux 7.x user:
systemctl start crond.service
Stop cron service
To stop the cron service, use:
/etc/init.d/crond stop
OR RHEL/CentOS 5.x/6.x user:
service crond stop
OR RHEL/Centos Linux 7.x user:
systemctl stop crond.service
Restart cron service
To restart the cron service, use:
/etc/init.d/crond restart
OR RHEL/CentOS 5.x/6.x user:
service crond restart
OR RHEL/Centos Linux 7.x user:
systemctl restart crond.service
Commands for Ubuntu/Mint/Debian based Linux distro
Debian Start cron service
To start the cron service, use:
/etc/init.d/cron start
OR
sudo /etc/init.d/cron start
OR
sudo service cron start
Debian Stop cron service
To stop the cron service, use:
/etc/init.d/cron stop
OR
sudo /etc/init.d/cron stop
OR
sudo service cron stop
Debian Restart cron service
To restart the cron service, use:
/etc/init.d/cron restart
OR
sudo /etc/init.d/cron restart
OR
sudo service cron restart
Source: https://www.cyberciti.biz/faq/howto-linux-unix-start-restart-cron/
1) If file /var/spool/cron/crontabs/root
edit via SFTP client - need service cron restart
.
Reload service not work.
2) If edit file /var/spool/cron/crontabs/root
via console linux (nano, mc) - restart NOT need.
3) If edit cron via crontab -e
- restart NOT need.
Ubuntu 18.04 * Usage: /etc/init.d/cron {start|stop|status|restart|reload|force-reload}
On CentOS (my version is 6.5) when editing crontab you must close the editor to reflect your changes in CRON.
crontab -e
After that command You can see that new entry appears in /var/log/cron
Sep 24 10:44:26 ***** crontab[17216]: (*****) BEGIN EDIT (*****)
But only saving crontab editor after making some changes does not work. You must leave the editor to reflect changes in cron. After exiting new entry appears in the log:
Sep 24 10:47:58 ***** crontab[17216]: (*****) END EDIT (*****)
From this point changes you made are visible to CRON.