After I ordered new VPS (CentOS 6.x) on DigitalOcean (SSD Cloud VPS). I found that crontab is not installed on server, When I try to execute “crontab -e” command, I got following error
# crontab -e -bash: crontab: command not found
Installing crontab
To install crontab command, I found it comes from cronie package. Type the following command
# yum install cronie -y
Start it with command
# service crond start
To make it persistent, so that it starts on boot, use:
# chkconfig crond on
How to Add New Job in Crontab
To add a new cron use crontab -e to edit it in editor and add cron as per your requirments.
# crontab -e
Listing Jobs in Crontab
To list the job scheduler under crontab, we can use -l command line switch with crontab command. For example to list jobs scheduled for current user
# crontab -l
To view jobs scheduled under other user specify username with -a switch like below.
# crontab -u-l