rpm Command in Linux

Syntax of rpm Command in Linux

The basic syntax of the rpm command in Linux is as follows:

Where:

• options: These are the flags or switches that you can use with the rpm command. They tell the command what function to perform, such as installing, upgrading, or querying a package.
• package_file | package_name: This is the specific .rpm package file or the installed package name you're dealing with. It could be a package you're looking to install, upgrade, verify, or remove.

Options in rpm Command in Linux

1. -i | --install: This option is used to install a new package.

   For example -

   This command will install the 'sample_package.rpm' package.

2. -q | --query: This option is used to query an installed package or a .rpm package file.

   For example -

   Output:

   This command queries the installed 'sample_package' and returns its version if it exists.

3. -e | --erase: This option is used to remove an installed package.

   For example -

   This command will remove the installed 'sample_package'.

Example Usages

• Installing a package:

  Explanation: This usage of the rpm command in Linux installs 'sample_package.rpm'.

• Querying a package:

  Output:

  Explanation: This usage queries the installed 'sample_package' and returns its version.

Advanced Use Cases of rpm Command in Linux

• Upgrade a package:

  Explanation: This command will upgrade the 'sample_package' to the version provided in the .rpm file, or install it if it doesn't exist.

• Query all installed packages:

  Output:

  Explanation: This command lists all installed packages on the system.

• Verify an installed package:

  Explanation: This command verifies the integrity of the installed 'sample_package'. It compares the size, digest, permissions, type, owner, group, modification time, and capabilities of each file against the values from the database.