Redhat Package Manager ( YUM )
yum is the package manager for Redhat based system.
Help display yum commands and options
yum help
Individual packages
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 info about vsftpd package
yum info vsftpd
Display dependencies for a package (deplist)
yum deplist nfs-utils
Find packages that provide the queried file
Show package that contains top command
yum provides “*bin/top”
Show package containing README.top file
yum provides “*/README.top”
Search package names and descriptions for a term
Find packages with samba in name or description
yum search samba
Get information about available package updates
yum updateinfo security
Groups of packages
Display description and contents of a package group
yum groupinfo “Web Server”
Manage Yum Repositories
Display information about enabled yum repositories
yum repoinfo rhel-7-server-rpms
See info on rhel-7-server-rpms repo
yum repo-pkgs my-rpms list
List packages from my-rpms repo
yum repo-pkgs my-rpms install
Remove all packages from my-rpms repo
yum repo-pkgs my-rpms remove
Troubleshoot And Maintain Yum
List all yum install, update and erase actions
yum history list
Show details of yum transaction 3
yum history info 3
Undo the yum action from transaction 3
yum history undo 3
Clear out cached package data
yum clean packages
Clean out all packages and meta data from cache
yum clean all
Install, Remove And Upgrade Packages With Yum
Install the vsftpd package
yum install vsftpd
Update one or all packages on your system
yum update
Update the httpd package (if available)
yum update httpd
Apply security-related package updates
yum update --security
Reinstall the current version of a package
yum reinstall util-linux
Downgrade a package to an earlier version
yum downgrade abc
Install abc package from local directory
yum localinstall http://myrepo/abc-1-1.i686.rpm
Remove the vsftpd package and dependencies
yum remove vsftpd
autoremove Same as erase, plus removes additional unneeded packages *
yum autoremove httpd
Popular Options For Different Yum Commands
Option Description
-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
--enableplugin - Enable a plugin that is installed, but currently disabled
--changelog - Display changelog information of package
--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
Download vsftpd package to cache
yum install --downloadonly vsftpd
More Yum-Related Commands (install the yum-utils package)
Command Description
find-repos-of-install - Find which repository a package comes from
needs-restarting - Find processes that have been updated and need to restart
repoquery --requires --resolve bash - Show dependent packages
reposync - Synchronize yum repositories to a local directory
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