14.2.  yum Commands

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yum commands are typically run as yum <command> <package name/s> . By default, yum will automatically attempt to check all configured repositories to resolve all package dependencies during an installation/upgrade.
The following is a list of the most commonly-used yum commands. For a complete list of available yum commands, refer to man yum.
yum install <package name/s>
Used to install the latest version of a package or group of packages. If no package matches the specified package name(s), they are assumed to be a shell glob, and any matches are then installed.
yum update <package name/s>
Used to update the specified packages to the latest available version. If no package name/s are specified, then yum will attempt to update all installed packages.
If the --obsoletes option is used (i.e. yum --obsoletes <package name/s> , yum will process obsolete packages. As such, packages that are obsoleted across updates will be removed and replaced accordingly.
yum check-update
This command allows you to determine whether any updates are available for your installed packages. yum returns a list of all package updates from all repositories if any are available.
yum remove <package name/s>
Used to remove specified packages, along with any other packages dependent on the packages being removed.
yum provides <file name>
Used to determine which packages provide a specific file or feature.
yum search <keyword>
This command is used to find any packages containing the specified keyword in the description, summary, packager and package name fields of RPMs in all repositories.
yum localinstall <absolute path to package name/s>
Used when using yum to install a package located locally in the machine.
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