Yum commonly used commands detailed

Yum is a background program for managing the RPM package, written in Python, and can be a very handy solution to the RPM dependencies. After establishing the Yum server, the Yum client can obtain the software package via HTTP and FTP, and use the convenient command to manage and update all the RPM packages and even the kernel updates.

I. Listing PACKAGE Documents

List all RPM packages that can be installed or updated in the repository

# Yum List

List specific available RPM packages in the repository that can be installed or updated and installed

# Yum List Perl//List of packages named Perl

# Yum List perl*//listing Perl at the beginning of the package

List all the RPM packages in the repository that can be updated

# Yum List Updates

List all the RPM packages that have been installed

# Yum List installed

List the RPM packages that have been installed but not included in the repository

# Yum List Extras

Note: Extras is the resource list name defined in REPOS.D

Ii. enumeration of resource information

Lists all the RPM packages that can be installed or updated in the repository

# Yum Info

Lists the specific information in the repository that can be installed or updated and installed RPM packages

# Yum Info perl//Listing Perl package information

# Yum Info perl*//List all packages at the beginning of Perl

List all the RPM packages in the repository that can be updated

# Yum Info Updates

List all the RPM packages that have been installed

# Yum Info installed

List information about the RPM packages that have been installed but not included in the repository

# Yum Info Extras

Third, search

Search for RPM packages that match specific characters

# Yum Search Perl//searching in Package name, package description, etc.

Search for an RPM package that contains a specific filename

# YUM provides realplay

Iv. Management Pack

Install the RPM package

# yum Install Perl//install Perl package

# yum Install perl*//install Perl at the beginning of the package

Delete the RPM package, including the package that is dependent on the package

# yum Remove perl*//will delete perl-* all packages

V. Update

Check for updatable RPM packages

# yum Check-update

Update all RPM Packages

# Yum Update

Update the specified RPM package, such as update kernel and kernel source

# Yum Update kernel Kernel-source

Large-scale version upgrades, unlike Yum Update, even old obsolete packages are upgraded

# Yum Upgrade

Six, empty the cache

Clear staging of the RPM package file

# Yum Clean Packages

Clear staging of the RPM header file

# Yum Clearn headers

Clear the old RPM header files in the staging

# Yum Clean oldheaders

Clears the old RPM header files and package files in the staging

# Yum Clearn

Or

# Yum Clearn All

Vii. Other

Install livna.org RPMs GPG key

# RPM--import Http://rpm.livna.org/RPM-LIVNA-GPG-KEY

Check GPG Key

# Rpm-qa gpg-pubkey*

Show key Information

# Rpm-qi Gpg-pubkey-a109b1ec-3f6e28d5

Delete key

# RPM-E Gpg-pubkey-a109b1ec-3f6e28d5