How to manage RPM packages in Linux systems

In the Linux operating system, there is a system software package, which is red Hat Package Manager (RPM). The toolkit was first launched by Red Hat and later borrowed by other Linux developers. Because it saves a lot of time for Linux users, it is widely used to install and remove software under Linux.

Core features of package management:

1, the production of software packages;

2, installation, uninstall, upgrade, query, check;

Below, we specifically describe the use of the RPM package

RPM Command:

RPM: Managing Packages. (Its database is in the/var/lib/rpm file)

Rpmbuild: Create a package.

The management of RPM package:

Completion of installation, query, uninstall, upgrade, calibration, database reconstruction, validation data packets and so on;

Installation:

Rpm-i|--install/path/to/package_file

-H: Displays the progress of the installation with the # sign: Each # represents 2%

-V: Show detailed procedures

-VV: A more detailed process

Rpm-ivh/path/to/package_file

--nodeps: Ignore the dependency relationship;

--replacepkgs: Reinstall, replace the original installation;

--oldpackage: Version demotion

--force: Forced installation, can be reload or degraded

--test: Test whether to install

Inquire:

Rpm-q packge_name Query Whether the specified package is already installed

Example: # Rpm-q Bind

RPM-QA: Query for all packages that have been installed

Example: # Rpm-qa | grep "^z" queries all packages that start with Z

Rpm-qi package_name: Query The description information for the specified package

RPM-QL package_name: query Specifies the list of files generated after package installation

RPM-QC package_name: query Specifies the configuration file for package installation

RPM-QD package_name: Querying the Help files for the specified package installation

Rpm-q--scripts package_name: query Specifies the script contained in the package

Rpm-qf/path/to/somefile: The file specified by the query is generated by the RPM package installation

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