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What is the effect of the following command on an RPM-based Linux system: # rpm -ihv megaprog.rpm ?
What happens when an administrator runs the command "rpm -ihv megaprog.rpm" on an RPM-based Linux system?
Answer:
The effect of the command "rpm -ihv megaprog.rpm" is...
When an administrator types the command "rpm -ihv megaprog.rpm" on an RPM-based Linux system, it signifies the intention to install the package "megaprog.rpm" onto the system if it is valid and not already installed.
The "rpm" command in Linux is primarily used for package management, specifically for handling RPM packages. The options in the command have the following meanings:
- -i: Instructs RPM to install the specified package.
- -h: Displays installation progress with a hash (#) symbol.
- -v: Enables verbose mode for detailed information during installation.
Here's what happens when the command is executed:
- If the package "megaprog.rpm" exists, the system proceeds with the installation process. Otherwise, an error message is shown.
- The system validates the integrity and validity of the package to ensure it is not corrupted or tampered with. If valid, installation continues; if not, an error occurs.
- When the package is both valid and not installed, it is extracted, files are placed in the correct locations, and configurations are applied. Installation progress is displayed thanks to the "-h" and "-v" options.
If the package is already installed, the installation is skipped, and a message confirms its presence.
In summary, running "rpm -ihv megaprog.rpm" attempts to install the package on the system, provided it exists, is valid, and is not already installed.