#----------------------------------------------
#
# To install the latest version of a package:

$ yum install {package-name}

#
#----------------------------------------------
#
# To reinstall a package:

$ yum reinstall {package-name}

#
#----------------------------------------------
#
# To perform a local install:

$ yum localinstall {package-name}

#
#----------------------------------------------
#
# To install all updates/patches

$ yum update

#
#----------------------------------------------
#
# To fix an interrupted update

$ yum-complete-transaction 

# If this doesn't work type in the following:

$ yum history 

# This will list the yum transactions. A * will indicate an 
# interrupted/aborted transaction. Take note of the transaction number, 
# then yupe the following:

$ yum history redo force-reinstall [transaction ID]

# Alternatively, undo and then redo the transaction as follows:

$ yum history undo [transaction ID]
$ yum history redo [transaction ID]

#
#----------------------------------------------
#
# To install updates for specific package

$ yum update {package-name}

#
#----------------------------------------------
#
# To downgrade a specific package

$ yum downgrade {package-name}

#
#----------------------------------------------
#
# To updates package to specific version.
## First find a list of all duplicates

$ yum --showduplicates list {package-name}

## Now update to particular version

$ yum update-to {package-name}-{version}

#
#----------------------------------------------
#
# To display a list of updated software and security fixes

$ yum list updates

#
#----------------------------------------------
#
# To find out whether updates exist for already installed packages

$ yum check-update

#
#----------------------------------------------
#
# To remove a package:

$ yum remove {package-name}
$ yum erase {package-name}

#
#----------------------------------------------
#
# To remove unneeded packages/deps:

$ yum autoremove 

#
#----------------------------------------------
#
# To search for a package:

$ yum search {package-name}

#
#----------------------------------------------
#
# To find what package installs a program:

$ yum whatprovides </path/to/program>

#
#----------------------------------------------
#
# To find the dependencies of a package:

$ yum deplist {package-name}

#
#----------------------------------------------
#
# To find information about a package:

$ yum info {package-name}

#
#----------------------------------------------
#
# List all installed packages 

$ yum list installed

# 
#----------------------------------------------
#
# List packages containing a certain keyword:

$ yum list <package_name_or_word_to_search>

# 
#---------------------------------------------- 
# 
# To download the source RPM for a package:

$ yumdownloader --source {package-name}

# (You have to install yumdownloader first, which is installed by the yum-utils package)
#
#----------------------------------------------
#
# Clean Yum Cache

$ yum clean all

## To check local rpm database for problems

$ yum check

#
#----------------------------------------------
#
# List currently enabled repositories:

$ yum repolist

#
#----------------------------------------------
#
# To see info about enabled repositories:

$ yum repoinfo {repo-name}

#
#----------------------------------------------
#
# To work with a given repository:

$ yum repo-pkgs {repo-name} <list|installed|remove|upgrade|reinstall|info> {package-name}

#
#----------------------------------------------
#
# To add a yum repo

$ yum-config-manager --add-repo {repo-url}

#
#----------------------------------------------
#
# To enable a yum repo

$ yum-config-manager --enable {repo-id}

## use `yum repolist all` to list all repo ids. 

#
#----------------------------------------------
#
# To disable a yum repo

$ yum-config-manager --disable {repo-id}

#
#----------------------------------------------
#
# To view yum history

$ yum history

or 

$ yum history list

# Lots of things that you can do with this. Checkout 
# https://www.cyberciti.biz/faq/yum-history-command/

#
#----------------------------------------------
#
# To list available groups from all yum repos.
#

$ yum groups list 

or 

$ yum grouplist

#
#----------------------------------------------
#
# To view group description/list of packages it contains etc.
#

$ yum groups info "GROUP NAME"

#
#----------------------------------------------
#
# To install a group of packages
#

$ yum groups install "GROUP NAME"

#
#----------------------------------------------
#
# To remove a group of packages
#

$ yum groups remove "GROUP NAME"

#
#----------------------------------------------