Yum
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There are newer articles at CentOS 7.x yum
Also have a look at related Advantages of using package managers
yum provides
Sometimes we know the name of the program/command that is required but we do not know which rpm file or package should be installed in order to install the given program/command. In such cases one can use:
yum provides */<binary-name>
to list names of all packages which provide a file with given name. Then based on package description correct package can be installed to obtain the program.
yum environments or groups
To list environments and then groups available with yum use:
yum group list
To install environment such as "Server with GUI", "GNOME Desktop", etc. use:
yum install @^"Environment Name"
To install group such as "Graphical Administration Tools" use:
yum install @"Group Name"
If you face issue with group installations try referring https://access.redhat.com/discussions/1262603
References
References for understanding and learning rpm and yum properly:
- Information on restoring original files if package was installed via RPM is at https://www.g-loaded.eu/2012/03/26/restore-original-configuration-files-from-rpm-packages/
- Detailed information on RPM and yum is available at https://www.ibm.com/developerworks/linux/library/l-lpic1-v3-102-5/?ca=drs-
- RPM uses a fairly complex logic while upgrading a package to decide fate of configuration files. The logic is described in detail at http://www.rpm.org/max-rpm/ch-rpm-upgrade.html
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