Several new but useful command parameters in RPM

-- Percent

Usage reference:

Rpm-I -- percent nmap-3.00-4.i386.rpm

Purpose:

The installation percentage is displayed.

-H or -- hash

Usage reference:

Rpm-I -- hash nmap-3.00-4.i386.rpm

Purpose:

The installation of large files is friendly. You don't have to worry about whether the machine is faulty.

-VV [for-I option]

Usage reference:

Rpm-I-VV nmap-3.00-4.i386.rpm

Purpose:

You can get more information during the installation process.

-- Excludedocs

Usage reference:

Rpm-I -- excludedocs nmap-3.00-4.i386.rpm

Purpose:

The doc document will not be installed, that is, you will have no nmap-3.00 under/usr/share/doc/directory. this is useful in the space required by the installation package. For example, are you creating a router?

-- Includedocs

Usage reference:

Rpm-I -- includedocs nmap-3.00-4.i386.rpm

Purpose:

Specify the document that must be installed with the package

-- Replacepkgs

Usage reference:

Rpm-I -- replacepkgs nmap-3.00-4.i386.rpm

Purpose:

Even if the package has been installed, force the package to be installed again.

-- Replacefiles

Usage reference:

Rpm-I -- replacefiles nmap-3.00-4.i386.rpm

Purpose:

Even if the package will overwrite some other package files, continue to install

-- Force

Usage reference:

Rpm-I -- force nmap-3.00-4.i386.rpm

Purpose:

Ignore conflicts between packages and files and force Installation

-- Noscripts

Usage reference:

Rpm-I -- noscripts vsftpd

Purpose:

% Pre and % post scripts in the vsftpd. spec file are not executed

Example: [% pre]

% Prep

% Setup-Q-N % {name}-% {version}

% Pattern-P1-B. RH

% Patch2-P1-B. Mok

CP % {source1 }.

Example: [% post]

% Post

/Sbin/chkconfig -- add vsftpd

/Usr/sbin/usermod-D/var/FTP ftp>/dev/null 2> & 1 |:

-- Prefix <path>

Usage reference:

Rpm-I -- prefix/tmp/local nmap-3.00-4.i386.rpm

Purpose:

This package is installed in the specified directory instead of the default directory.

-- Ftpproxy

Usage reference:

Rpm-I -- ftpproxy <proxy IP address> ftp://ftp.gnomovision.com/pub/rpms/...-1.0-1.i386.rpm

Purpose:

When you need to install the package directly through Internet FTP, the company's LAN has restrictions and you need to use an FTP proxy to access FTP, you should use this parameter

-- Ftpport <port>

Usage reference:

Rpm-I -- ftpport <port> ftp://ftp.gnomovision.com/pub/rpms/...-1.0-1.i386.rpm

Purpose:

When you need to specify a specific port number, use

How can I query the packet information provided by Red Hat?

First install an RPM package:

Rpm-IVH rpmdb-redhat-version.i386.rpm

This package is an RPM package that is attached to the RedHat system during production. You can use this package to check which package provides a specific file. This can solve some packet dependency problems.

For example, if an error occurs when you install a package and libx11.so. 6 is missing, but you do not know which package provides this file, you can do this:

Rpm -- redhatprovides libx11.so. 6

-- Oldpackage

Usage reference:

Rpm-u -- oldpackage packagename-oldversion.rpm

Purpose:

After a higher version of a package is installed, is there a problem with this version? Would you prefer to go back to a lower version? No problem. You can "Upgrade" to a lower version.

Can I query more swimming information in RPM? So we should fully explore more parameters. It's very powerfull!

-- Whatprovides

Usage reference:

Rpm-Q -- whatprovides/etc/httpd

Purpose:

Query a file, a directory, and a module.

-- Whatrequires

Usage reference:

Rpm-Q -- whatrequires module-Info

Purpose:

Query a file, a directory, and a module.

-G

Usage reference:

Rpm-QG Base

Purpose:

Query packages in a group

-D

Usage reference:

Rpm-qdcf/sbin/dump

Purpose:

Query all associated documents installed on the system in the package to which a command belongs. If you encounter a command that does not know what it is, you can find a reference document for it, this command is useful.

-- Dump

Usage reference:

Rpm-QL -- dump sendmail

Purpose:

Want to know all the situations after this package is installed? Including all file sizes? Directory location? The last modification time of all files? Owner of all files? Group ?.... You can use this parameter.

-- Scripts

Usage reference:

Rpm-Q -- scripts xfree86

Purpose:

Want to see what needs to be done before RPM installs a package? What should I do after installation? Use this parameter

Some special examples.

-Qcf

Usage reference:

Rpm-qcf/bin/bash

Purpose:

Used to obtain the configuration file and its location of a package

-Qpil

Usage reference:

Rpm-qpil nmap-3.00-4.i386.rpm

Purpose:

View information about an uninstalled RPM package