Commands

Yum Command Cheat Sheet

Keep forgetting Yum commands in Red Hat? Here's a cheat sheet you can download and keep with you for quick reference.

Team LHB
Team LHB

Yum is the package manager in Red Hat and Red Hat-based Linux distributions. It allows you to manage every aspect of software on your Red Hat system.

You are not going to learn Yum commands in detail here. Instead, this Yum cheat sheet provides you with a quick and easy overview of all major Yum package manager commands and their respective functionality.

You can download the Yum command cheat sheet in PDF form from the Dropbox link below.

Download Yum Cheat Sheet

Install, uninstall & upgrade packages

Here are the Yum commands for installing, removing and updating packages.

Command Functionality Example command
install Install a package from yum repository sudo yum install nginx
remove Remove an installed package and its dependencies sudo yum remove nginx
erase Similar to remove command sudo yum erase nginx
update Update or or more packages on the system sudo yum update or sudo yum update gcc
update-to Update or or more packages to a specific version sudo yum update-to ngingx-2.7-1.1
upgrade update all packages to the latest version sudo yum upgrade
reinstall Reinstall current version of a specific package sudo yum reinstall httpd
autoremove Remove a package and all other unnecessary packages sudo yum autoremove httpd
downgrade Downgrade a specific package to an earlier version sudo yum downgrade nginx
swap Remove package and install another sudo yum swap nginx httpd
localinstall Install a package from a local repository sudo yum localinstall http://127.0.0.1/baseos/nginx-a.b.b.c.rpm
groupinstall Install packages from a specific group sudo yum groupinstall "group name"

Base Package Commands

These commands will help you explore installed packages or search for packages from repositories.

Command Functionality Example
list List package names from repositories sudo yum list all
info Show information about a specific package sudo yum info nginx
search Search for a package name and description sudo yum search apache
updateinfo Show information about available package updates sudo yum updateinfo baseos
check-update Show available package updates from enabled repositories sudo yum check-update
grouplist Show names and available package groups sudo yum grouplist
deplist Show dependencies for a specific package sudo yum deplist vsftpd
provides Locate the package that provides a specific file sudo yum provides "*/bin/zsh"
groupinfo Show description and contents of a package group sudo yum groupinfo "group name"
help Display yum help information or help on sub command sudo yum help or sudo yum help list

Managing Yum Repos

For adding and managing additional repositories.

Command Functionality Example
repolist List the available software repositories sudo yum repolist
repo-pkgs Use packages in a specific repository sudo yum repo-pkgs baseos list
repoinfo Show information about enabled repositories sudo yum repoinfo baseos
makecache Download repository data to cache sudo yum makecache

Troubleshooting Yum

When things go wrong with Yum, use these commands.

Command Functionality Example
clean Clean out all cached package data/clean all packages metadata sudo yum clean packages or sudo yum clean all
check Check local RPM db for problems sudo yum check
history View and use yum transactions sudo yum history list or sudo yum history undo or sudo yum history redo
fssnapshot Show LVM snapshots sudo yum fs filters

Helpful Options

Common options to be used with Yum commands:

Command Option Functionality Example
-y Assume yes if prompted sudo yum -y install nginx
--assumeno Assume no if prompted sudo yum --assumeno install nginx
-v Verbose sudo yum -v install
-q Quiet sudo yum -q install
--noplugins Do not load any YUM plugins sudo yum --noplugins install
--disableplugin= Deactivate a specific plugin sudo yum --disableplugin=ps
--enableplugin= Activate a specific plugin sudo yum --enableplugin=ps
--changelogs Show changelog info of a package sudo yum --changelogs install httpd
---filter=?? Filter output for specific vendors, groups, architectures, and others. sudo yum list available --filter=server
--enablerepo= Enable a deactivated repo sudo yum install nginx --enablerepo=??
--disablerepo= Disable an activated repo sudo yum install nginx --deactivaterepo=??
--downloadonly Download package and no install sudo yum install --downloadonly httpd

Extra Commands

Some additional commands that you may need to use once a while:

Commands Functionality
reposync Synchronize yum repo to local directory
show-installed Show installed packages
verifytree Check local repo for consistency
yumdb Change yum database
yumdownloader Download a package from repo to cwd
repouery Query remote repo and local db
repoclosure Get unmet dependency list
needs-restarting Show processes that have been updated and require restart

Liked what you just saw? You can download the entire stuff in PDF format from the link below:

Yum_Command_cheat_sheet.pdf
Shared with Dropbox

If you feel lost at any time, you can always man yum.



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