DevOps Roadmap

 

YUM COMMAND CHEAT SHEET for Red Hat Enterprise Linux

YUM QUERIES

help

Display yum commands and options

    yum help - Show yum subcommands and options

Individual packages

list

List package names from repositories

    yum list available -     List all available packages

    yum list installed -     List all installed packages

    yum list all -     List installed and available packages

    yum list kernel -     List installed and available kernel packages

info

Display information about a package

    yum info vsftpd -     List info about vsftpd package

deplist

Display dependencies for a package

    yum deplist nfs-utils -     List dependencies and packages providing them

provides

Find packages that provide the queried file

    yum provides “*bin/top” -     Show package that contains top command

    yum provides “*/README.top” -     Show package containing README.top file

search

Search package names and descriptions for a term

    yum search samba -     Find packages with samba in name or description

updateinfo

Get information about available package updates

    yum updateinfo security -     Get info on available security updates

Groups of packages

grouplist

List names of installed and available package groups

groupinfo

Display description and contents of a package group

    yum groupinfo “Web Server” -     See packages in Web Server group

check-update

Query repositories for available package updates

MANAGE YUM REPOSITORIES

repolist

Display enabled software repositories

repoinfo

Display information about enabled yum repositories *

    yum repoinfo rhel-7-server-rpms -     See info on rhel-7-server-rpms repo

repo-pkgs

Work with packages in a particular repository *

    yum repo-pkgs my-rpms list -     List packages from my-rpms repo

    yum repo-pkgs my-rpms install -     Install all packages from my-rpms repo

    yum repo-pkgs my-rpms remove -     Remove all packages from my-rpms repo

makecache

Download yum repository data to cache

TROUBLESHOOT AND MAINTAIN YUM

check

Check the local RPM database for problems (runs for a long time)

history

View and use yum transactions

    yum history list -     List all yum install, update and erase actions

    yum history info 3 -     Show details of yum transaction 3

    yum history undo 3 -     Undo the yum action from transaction 3

    yum history redo 3 -     Redo the undone yum action from transaction 3

clean

Clear out cached package data

    yum clean packages -     Delete packages saved in cache

    yum clean all -     Clean out all packages and meta data from cache

fssnapshot

List LVM stapshots (helps roll back after package updates)

fs

Act on filesystem (prevent doc or language file install on minimal systems)

    yum fs filters -     List enabled filesystem filters

    yum fs documentation -     Filters all docs from being installed (careful!)

INSTALL, REMOVE AND UPGRADE PACKAGES WITH YUM

install

Install a package from a repository to your system

    yum install vsftpd -     Install the vsftpd package

update

Update one or all packages on your system

    yum update -     Update all packages with available updates

    yum update httpd -     Update the httpd package (if available)

    yum update --security -     Apply security-related package updates

update-to

Update one or all packages to a particular version

upgrade

Update packages taking obsoletes into account

localinstall

Install a package from a local file, http, or ftp

    yum localinstall abc-1-1.i686.rpm -     Install abc package from local directory

    yum localinstall http://myrepo/abc-1-1.i686.rpm -     Install abc from FTP site

downgrade

Downgrade a package to an earlier version

    yum downgrade abc -     Downgrade the abc package to an earlier version

reinstall

Reinstall the current version of a package

    yum reinstall util-linux -     Reinstall util-linux (to replace any deleted files)

swap

Remove one package and install another

    yum swap ftp lftp -     Remove ftp package and install lftp package

erase

Erase a package (and possibly dependencies) from your system

    yum remove vsftpd -     Remove the vsftpd package and dependencies

remove

Same as erase

autoremove

Same as erase, plus removes additional unneeded packages *

    yum autoremove httpd -     Remove httpd and other unneeded packages

groupinstall

Install all packages in the selected group

    yum groupinstall “Web server” -     Install Web Server packages

MANAGE LANGUAGE PACKAGES WITH YUM

langavailable

List all available languages *

langinfo

List packages available for a language *

    yum langinfo es -     List packages associated with Spanish language

langinstall

Install packages associated with a particular language *

    yum langinstall es -     Install packages associated with Spanish language

langlist

List languages that are installed *

langremove

Remove installed language packs for a language *

    yum langremove es -     Remove packages associated with Spanish language

POPULAR OPTIONS FOR DIFFERENT YUM COMMANDS **

-y     Assume yes if prompted

--assumeno     Assume no if prompted

-q    Produce no output

-v    Produce extra debugging output

--noplugins    Run command without loading any yum plugins

--disableplugin=    Disable a particular plugin for single command

                                yum --disableplugin=langpacks info vsftpd

--enableplugin=    Enable a plugin that is installed, but currently disabled

                                yum --enableplugin=ps ps

                                Show packages tied to running processes

--enablerepo=    Enable currently disabled repo for a single command (wildcards okay)

                            yum install docker --enablerepo=rhel-7-server-extras-rpm

--disablerepo=    Disable currently enabled repo for a single command (wildcards okay)

                            yum list available --disablerepo=epel

--downloadonly    Download to /var/cache/yum/arch/prod/repo/packages/, but don’t install

                            yum install --downloadonly vsftpd

                            Download vsftpd package to cache

--filter-???=    Replace ??? with vendors, rpm-groups, arches, and others to filter output

--changelog    Display changelog information of package

MORE YUM-RELATED COMMANDS (install the yum-utils package)

find-repos-of-install

Find which repository a package comes from

needs-restarting

Find processes that have been updated and need to restart

repoclosure

Get unmet dependency list from repositories

repoquery

Query remote repos and local RPM database

repoquery --requires --resolve bash

Show dependent packages

reposync

Synchronize yum repositories to a local directory

reposync -r rhel-atomic-host-beta-rpms

Get packages from repo

repotrack

Download a package and all its dependencies

show-installed

List installed RPM packages and statistics

verifytree

Check the local yum repository for consistency

yum-complete-transaction

Try to complete yum transactions that didn’t finish

yumdb

Check or change the yum database

yumdownloader

Download a package from a repo to current directory

Type man yum for futher details on all yum subcommands and options

* New options for RHEL 7

** Some options need yum plugins. Type yum list “yum-plugin*” to see available plugins.