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发布时间：2016-05-05 13:49:16
https://support.rackspace.com/how-to/install-epel-and-additional-repositories-on-centos-and-red-hat/This article describes how to configure a CentOS or Red Hat Enterprise Linux system to use the Fedora Extra Packages for Enterprise Linux (EPEL) repository. The EPEL repository provides usef.........【阅读全文】
发布时间：2016-01-06 15:03:52
http://www.cyberciti.biz/faq/howto-linux-add-user-to-group/How can I add a user to a group under Linux operating system using command line options? How to add an existing user into a group in Linux using command line options?You can use the useradd or usermod commands to add .........【阅读全文】
