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We will look at a couple methods of installing software: A traditional method ('''compiling source code''') and a more modern method ('''yum install''')
<u>Install Method #1: Compiling Source Code</u>
This is the original way of installing software in Linux / Unix.
<u>Install Method #2: Using the '''yum''' Utility</u>
This is a newer and more preferred method of installing software by command-line on a Redhat / Centos / Fedora Linux distribution. The yum utility is a program which is a <u>'''wrapper'''</u> for the rpm command. A wrapper program simply means a program that uses another utility (in this case, the rpm command). We have used the rpm command to query or determine information regarding installed applications on our Linux systems. When your Linux operating systems were installed, the installation DVD or network media contained rpm files that were installed on the system. Rpm files are simply pre-compiled programs that make it easier to install applications for a Linux system.
'''Advantages''':
* yum program can install rpm files on a Linux repository (online Linux distribution database) or from local media
* yum program automatically determines "dependency issues", and has them installed first, then install the intended application
* yum program uses rpm utility which can provide rpm queries to determine install application information
'''Limitations''':
* May not be used for installing very old or "leading edge" software that are not contained in repositories, and cannot be installed using the ''yum'' utility.
'''Steps to Install using yum Program''':
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