Linux yum package management method

Introduction

yum (Yellow dog Updater, Modified) is a shell front-end package manager in Fedora, RedHat and SUSE. Based on RPM package management, it can automatically download and install RPM packages from the specified server, automatically handle dependency relationships, and install all dependent software packages at once without the tedious downloading and installation again and again. Yum provides commands for finding, installing, and deleting one, a group of, or even all software packages, and the commands are concise and easy to remember.

yum command

grammar

yum [options] [action to perform] [package name...]

Command options:

-h : help

-y: When prompted during the installation process, select "yes" for all

-q: Do not display the installation process

Common yum commands

1. List all updateable software inventory commands: yum check-update

2. Update all software commands: yum update / yum -y update (-y will upgrade all packages, change software settings and system settings, and upgrade the system version and kernel) / yum -y upgrade (upgrade all packages, do not change software settings and system settings, upgrade the system version, and do not change the kernel)

3. Install only the specified software command: yum install [package name]

4. Update only the specified software command: yum update [package name]

5. List all installable software list commands: yum list

6. Delete the software package command: yum remove [package name]

7. Search software package command: yum search [package name]

8. Clear cache commands: yum clean packages: Clear the packages in the cache directory / yum clean headers: Clear the headers in the cache directory / yum clean oldheaders: Clear the old headers in the cache directory / yum clean, yum clean all (= yum clean packages; yum clean oldheaders): Clear the packages and old headers in the cache directory

9. Check whether there is a need to install a certain software yum list | grep [software name]

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