Download Red Hat RPM Packages for Cloud Application Development
How to Download and Install RPM Packages on Linux
RPM is an acronym for Red Hat Package Manager, which is an open packaging system for Linux and UNIX systems. It can install, uninstall, update, query, and verify packages that use the .rpm file format. However, it cannot manage dependency resolution like YUM or DNF. RPM is the baseline package format of the Linux Standard Base.
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RPM is a useful tool for managing software on Linux systems, especially those based on Red Hat Enterprise Linux (RHEL), CentOS, Fedora, and other derivatives. In this article, you will learn how to download and install RPM packages on Linux using various methods.
Prerequisites
Before you start, make sure you have the following:
A user account with sudo privileges
Access to a terminal window / command line
RPM, YUM, or DNF package managers (all included by default)
How to Download RPM Packages
Using a web browser
The easiest way to download an RPM package is to use a web browser. You can find many websites that offer software in RPM format for Linux users. For example, you can download Slack from its official website. Just click on the download button and choose your Linux distribution.
The downloaded file will have a .rpm extension and will be saved in your default download location. You can also choose a different location if you want.
Using wget
If you don't have access to a web browser or you prefer using the command line, you can also download an RPM package using wget, which is a tool for retrieving files from web servers.
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To use wget, you need to know the URL of the file you want to download. You can find this by right-clicking on the download link in your web browser and choosing Copy link address or Copy link location.
Then, open a terminal window and use .0-0.1.fc21.x86_64.rpm
This will download the file to your current working directory. You can also specify a different location by using the -O option, followed by the path and filename you want to use. wget -O /home/user/Downloads/slack.rpm
How to Install RPM Packages
Using the RPM command
Once you have downloaded an RPM package, you can install it using the rpm command, which is the core tool for managing RPM packages on Linux.
To install an RPM package, you need to use the -i option, followed by the name of the file. For example, to install Slack, you can use: sudo rpm -i slack.rpm
This will install the package and its dependencies, if any. You may need to enter your password for sudo authentication.
If you want to see more information about the installation process, you can use the -v option for verbose output, or the -h option for a progress bar.
Using YUM or DNF
Another way to install an RPM package is to use yum or dnf, which are higher-level package managers that can handle dependency resolution and other features. Yum is used on RHEL and CentOS systems, while dnf is used on Fedora systems.
To install an RPM package using yum or dnf, you need to use the localinstall option, followed by the name of the file. For example, to install Slack, you can use: sudo yum localinstall slack.rpm
or sudo dnf localinstall slack.rpm
This will install the package and its dependencies, if any. You may need to enter your password for sudo authentication.
If you want to see more information about the installation process, you can use the -v option for verbose output, or the -y option to automatically answer yes to any prompts.
How to Remove RPM Packages
Using the RPM command
If you want to uninstall an RPM package, you can use the rpm command with the -e option, followed by the name of the package. For example, to remove Slack, you can use: sudo rpm -e slack
This will remove the package and its dependencies, if any. You may need to enter your password for sudo authentication.
If you want to see more information about the removal process, you can use the -v option for verbose output.
Using YUM or DNF
You can also uninstall an RPM package using yum or dnf with the remove option, followed by the name of the package. For example, to remove Slack, you can use: sudo yum remove slack
or sudo dnf remove slack
This will remove the package and its dependencies, if any. You may need to enter your password for sudo authentication.
If you want to see more information about the removal process, you can use the -v option for verbose output, or the -y option to automatically answer yes to any prompts.
How to Query RPM Packages
Using the RPM command
If you want to query information about an RPM package, you can use the rpm command with various options. For example:
To query information about an installed package, use the -q option followed by the name of the package. For example: rpm -q slack
This will display information such as version number, release number, architecture, and installation date.
To query information about a downloaded file, use the -qp option followed by the name of the file. For example: rpm -qp slack.rpm
This will display information such as version number, release number, architecture, and summary.
To list all files in an installed package, use the -ql option followed by the name of the package. For example: rpm -ql slack
This will display all files and directories that belong to the package.
To list all files in a downloaded file, use the -qpl option followed by the name of the file. For example: rpm -qpl slack.rpm
This will display all files and directories that are contained in the file.
To display detailed information about an installed package, use the -qi option followed by the name of the package. For example: rpm -qi slack
This will display information such as name, version, release, architecture, summary, description, license, URL, source RPM, build date, install date, vendor, packager, group, size, etc.
To display detailed information about a downloaded file, use the -qpi option followed by the name of the file. For example: rpm -qpi slack.rpm
This will display the same information as above.
To verify an installed package, use the -V option followed by the name of the package. For example: rpm -V slack
This will check the package for any missing files, modified files, or other discrepancies. It will display a code for each file that indicates its status. For example: S.5....T. c /etc/slack.conf
This means that the file has a different size (S), MD5 checksum (5), and modification time (T) than expected.
To verify a downloaded file, use the -Vp option followed by the name of the file. For example: rpm -Vp slack.rpm
This will perform the same verification as above.
Using YUM or DNF
You can also query information about an RPM package using yum or dnf with various options. For example:
To list all available packages in the repositories, use the list option. For example: yum list
or dnf list
This will display the name, version, release, and repository of each package.
To list all installed packages on your system, use the list installed option. For example: yum list installed
or