RPM in Linux is a package management tool that provides a variety of commands to install, delete, query, update, and verify. Common RPM management commands and detailed instructions to share with you.

RPM package installation:

sudo rpm -i <package_name>.rpm

Where i is the RPM package to be installed, and <package_name>.rpm is the rpm package file to be installed. For example, to install example.rpm:

sudo rpm -i example.rpm

To upgrade the RPM package, you can use the u option:

sudo rpm -U <package_name>.rpm

u refers to the upgrade of the specified RPM package, if the package is already installed rpm upgrades it, if not, rpm installs it as a new package. Upgrade the example.rpm package:

sudo rpm -U example.rpm

To uninstall/delete the RPM package, use the e option:

sudo rpm -e <package_name>

Where e is the specified package to be deleted and <package_name> is the name of the package to be deleted.

Uninstall the example program:

sudo rpm -e example

If you want to know all the installed packages, you can use q to list them:

rpm -qa

q indicates query mode, and a lists all installed packages.

If you want to check whether a specific package is installed, you can specify the package name:

rpm -q <package_name>

To check whether the curl package has been installed, run the following command:

rpm -q curl

If you want to see the details of the installed packages, you can use qi:

rpm -qi <package_name>

i Displays package details. To view details about the curl package:

rpm -qi curl

If you want to see all the files installed in a package:

rpm -ql <package_name>

1 is all the files installed by the specified package. To view the curl package installed files:

rpm -ql curl

If you know the file path and want to know which package installed the file, you can use the qf query:

rpm -qf <file_path>

f indicates to query which package the file belongs to. To verify the signature of an installed package and ensure that it has not been tampered with, you can use the k option:

rpm -K <package_name>.rpm

If so, take care of any lost or damaged documents:

rpm -V <package_name>

Query package dependencies:

rpm -qR <package_name>

Find out which packages depend on a given package:

rpm -q --whatrequires <package_name>

whatrequires is to display which packages depend on the specified package. To view the installation path of the package:

rpm -q --queryformat '%{INSTALLTIME:date}\n' <package_name>

%{INSTALLTIME:date} is the installation time of the display package.

Get the metadata of the RPM package file, such as version, size, build time, etc. :

rpm -qpi <package_name>.rpm

p is the package file for the specified operation. i is to display package details.

To create an RPM package in RHEL or CentOS, install the following tools:

sudo yum install rpmdevtools

Create a new RPM package:

rpmdev-setuptree

RPM is a very powerful warranty technology with which it can easily install, uninstall, query, verify and manage globally.