Menu
I am familiar to setup the cron scheduler using crontab -e command on my centos. But today I found one of my centos servers doesn't have this command
I have tried to install this using yum install crontab but no luck. Then I tried yum install crontabs and it installed something
=============================================================================
Package Arch Version Repository Size
=============================================================================
Updating:
crontabs noarch 1.10-11.el5 base 7.0 k
Transaction Summary
=============================================================================
Install 0 Package(s)
Update 1 Package(s)
Remove 0 Package(s)
Total download size: 7.0 k
Is this ok [y/N]:
But still the crontab command doesn't work. If I do cat /etc/crontab then it shows below thing
SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
HOME=/
# run-parts
40 * * * * root run-parts /etc/cron.hourly
54 1 * * * root run-parts /etc/cron.daily
14 3 * * 0 root run-parts /etc/cron.weekly
38 1 16 * * root run-parts /etc/cron.monthly
What should I do to have crontab on that particular server? I am using CentOS release 5.2 (Final).
grep on cron shows:
[root~]# ps -ef | grep cron
root 24022 24001 0 19:07 pts/1 00:00:00 grep cron
starting cron service returns:
[root~]# service cron start
cron: unrecognized service
862
In Red Hat based distributions such as CentOS, crontab files are stored in the /var/spool/cron directory, while on Debian and Ubuntu files are stored in the /var/spool/cron/crontabs directory. Although you can edit the user crontab files manually, it is recommended to use the crontab command.
If you opened your crontab with vi , the default CentOS 8 text editor, you can do so by pressing ESC to make sure you're in vi 's command mode, then type :x and press ENTER . Please note that, on Linux systems, there is another crontab stored under the /etc/ directory.
As seen in Install crontab on CentOS, the crontab package in CentOS is vixie-cron. Hence, do install it with:
yum install vixie-cron
And then start it with:
service crond start
To make it persistent, so that it starts on boot, use:
chkconfig crond on
On CentOS 7 you need to use cronie:
yum install cronie
On CentOS 6 you can install vixie-cron, but the real package is cronie:
yum install vixie-cron
and
yum install cronie
In both cases you get the same output:
.../...
==================================================================
Package Arch Version Repository Size
==================================================================
Installing:
cronie x86_64 1.4.4-12.el6 base 73 k
Installing for dependencies:
cronie-anacron x86_64 1.4.4-12.el6 base 30 k
crontabs noarch 1.10-33.el6 base 10 k
exim x86_64 4.72-6.el6 epel 1.2 M
Transaction Summary
==================================================================
Install 4 Package(s)
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
