The use of Yum tools under Linux: Yum install / upgrade / view / search / uninstall software package

Philosophy of life 2020-11-09 17:44:36
use yum tools linux yum


One . About software packages

stay linux Installation package is required for software installation in , There are various types of software packages :.zip,.rar,.rpm,.tar.gz,.tar. Software package can also be divided into source code package and binary

package , A source code package is a package that has not been compiled , Need to go through GCC、C++ Compiler environment compiles to run . Binary packages do not need to be compiled , It can be installed and used directly . Distinguish whether it is

The source code package or binary package has to be judged based on the files in the software package , contain .h、.c、.cpp、.cc Wait for the end of the source file , Call it a source code package , And the software package contains

stay bin Catalog (bin There are executable files in the directory ), Call it binary package . Source packages are highly customizable , You can freely choose the function you need .

Two . About YUM

​ yum( Its full name is Yellow dog Updater, Modified) It's a front-end package manager . be based on RPM Package management , Can be automatically downloaded from the specified server RPM Bao He

And install , Dependency relationships can be handled automatically , And install all the dependent packages at once , No need to download it over and over again 、 install .yum Provides search 、 install 、 Delete a certain

individual 、 A set or even a whole package of commands , And the command is simple and easy to remember .yum Is based on C/S The architecture of ,C=client,S=ftp/http/file.

3、 ... and .yum Tool use

3.1 yum Install software features

# Install package ,-y Direct installation
[root@node5 ~]# yum -y install telnet

3.2 yum Upgrade package features

[root@node5 ~]# yum -y update # Upgrade package , Change software settings and system settings , The kernel of the system version is upgraded , No bags , Indicates that the whole system is upgraded
[root@node5 ~]# yum -y upgrade # Upgrade package , Do not change software settings and system settings , System version upgrade , The kernel doesn't change
# Inquire about rpm package telnet effect
[root@node5 ~]# yum info telnet
Loaded plugins: fastestmirror
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Repository epel is listed more than once in the configuration
Repository epel-debuginfo is listed more than once in the configuration
Repository epel-source is listed more than once in the configuration
Loading mirror speeds from cached hostfile
Installed Packages
Name : telnet
Arch : x86_64
Epoch : 1
Version : 0.17
Release : 65.el7_8
Size : 113 k
Repo : installed
From repo : updates
Summary : The client program for the Telnet remote login protocol
URL : http://web.archive.org/web/20070819111735/www.hcs.harvard.edu/~dholland/computers/old-netkit.html
License : BSD
Description : Telnet is a popular protocol for logging into remote systems over the
: Internet. The package provides a command line Telnet client
# See which package the command was installed in
[root@node5 ~]# yum provides /usr/bin/find
Loaded plugins: fastestmirror
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Repository epel is listed more than once in the configuration
Repository epel-debuginfo is listed more than once in the configuration
Repository epel-source is listed more than once in the configuration
Loading mirror speeds from cached hostfile
1:findutils-4.5.11-6.el7.x86_64 : The GNU versions of find utilities (find and xargs)
Repo : base
Matched from:
Filename : /usr/bin/find
1:findutils-4.5.11-5.el7.x86_64 : The GNU versions of find utilities (find and xargs)
Repo : @anaconda
Matched from:
Filename : /usr/bin/find
# Search for packages by keyword
[root@node5 ~]# yum search extundelet
============================================================================================ N/S matched: extundelet ============================================================================================
extundelete.x86_64 : An ext3 and ext4 file system undeletion utility
Name and summary matches only, use "search all" for everything.

3.4 yum Uninstall function

# uninstall telnet
[root@node5 ~]# yum -y remove telnet

summary : If yum Report errors , A few small problems to pay attention to :

  • ​ Make sure the disc is connected , Whether the CD is attached
  • ​ Whether the format in the configuration file is correct , Letter , Is there any sign missing , Whether the mount point is consistent with that set in the configuration file
  • ​ Network sources need to be networked , Operation and RPM similar , And the dependencies are automatically installed

3.5 yum Install package group features

1. Install package group Syntax :yum groupinstall GROUPNAME

# See which package groups are available
[root@node5 ~]# yum grouplist
# Install package groups
[root@node5 ~]# yum groupinstall 'Compatibility Libraries' -y
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