RHEL 6.x and CentOS 6.x Cron and At Utilities

Linux System Administrators responsible for RHEL 6.x and CentOS 6.x systems need to be able to automate system tasks. The official Red Hat Enterprise Linux (RHEL) 6.x “Deployment Guide” documentation includes a good tutorial on the popular “Cron” and “At” utilties. Read about these tools and other related items on the official documentation site:

Note that the CentOS 6.x minimal install does not include “at” among the default minimal set of utilities. Follow the RHEL 6 document for related commands to install the “at” tool and start the “atd” service. These basic tools for automation are important parts of the core Linux systems administration tool set. Learn them and use them!

# pipe reboot command to "at" with a scheduled time
# this example will reboot your server overnight
echo "/sbin/shutdown -r now" | at 2:00am
atq
# Use "at -c" with a number from "atq" to view at job details
# at -c NUMBER

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About notesbytom

Keeping technology notes on WordPress.com to free up my mind to solve new problems rather than figuring out the same ones repeatedly :-).
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