Use of the Yum repository and Yum Update Tool

Yum,yellow Dog Updater Modified

Software update mechanism based on RPM package construction

Automatically resolve package dependencies

All packages are provided by a centralized Yum software repository

Yum's basic configuration file:

Basic settings:/etc/yum.conf

Warehouse Configuration:/etc/yum.repos.d/*.repo

Log file:/var/log/yum.log

Cache directory:/var/cache/yum/$basearch/$releasever [for storing data such as download packages, warehouse records, etc.]

*.repo Basic Configuration items:

[Source name]: custom name, unique

Name: Description information for this software source

BaseURL: Specifies the URL address of the Yum server [local directory file://..., FTP or HTTP service: ftp://..., HTTP///...]

Enabled: Whether to enable this configuration

Gpgcheck: Whether to verify the RPM package to be installed

Gpgkey: Key file for RPM verification

Basic Package Operation:

Format: Yum [-y] instruction [software name] ... #[-y] omit confirmation when installing or deleting an operation

Common directives:

List: View Package lists

Search: View the package name or describe important keywords

Info: View description Information for the package, similar to Rpm-qi

Install: Installs the specified package, similar to Rpm-i

Update: Upgrade the specified package

Remove: Uninstalls the specified package, similar to RPM-E

Provides: similar to RPM-QF

Clean all: Empties all caches of local Yum

Software Group Basic operations:

Format: Yum [-y] directive [package group name] ... #[-y] Omit confirmation when installing or deleting an operation

Common directives:

Grouplist: View a list of software groups

GroupInfo: Viewing description information for a software group

Groupinstall: Installing the specified software group

Groupupdate: Upgrading software Groups

Groupremove: Uninstalling software groups

This article is from the "Trivia Summary" blog, so be sure to keep this source http://lyz010300.blog.51cto.com/9503473/1883827

Use of the Yum repository and Yum Update Tool