# rpm --checksig <.rpm>		(Need to check signature of an rpm)

# rpm -ivh <rpm-package>	(Installing an rpm package)

# rpm -qpR <rpm-package>	(Checking dependencies of rpm package before installing it)

# rpm -ivh --nodeps <rpm-package>	(Installing a rpm without dependencies)

# rpm -qa <rpm>			(Checking installed rpm)

# rpm -ql <package-name>	(List of files of an installed rpm packages)

# rpm -qa --last		(List recently installed rpm package) 

# rpm -qa			(List all installed rpm package)

# rpm -Uvh <rpm-package>	(Upgrading an rpm package)

# rpm -e <rpm-package>		(Removing an rpm package)

# rpm -e --nodeps <rpm-package>          (removing without dependecies)


# rpm -qf /usr/bin/htpasswd	(Query a file belongs to which rpm package)

# rpm -qi vsftpd		(Query an information of an installed rpm package)

# rpm -qip <rpm-package>	(Getting information of an rpm package before installing it)

# rpm -qdf /usr/bin/vmstat	(Getting documentation details of a installed rpm package)

# rpm -Vp <rpm-package>		(Verifying a package compares information of the package against the rpm database)

# rpm -Va               	(Verify all installed package)

# rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6	(Importing a rpm GPG key)

# rpm -qa gpg-pubkey*		(Listing installed gpg key)

Rebuilding a corrupted rpm database:

# cd /var/lib
# rm __db*
# rpm --rebuilddb
# rpmdb_verify Packages


YUM “Yellowdog Updater, Modified”

# yum install package		(Installing a rpm package)

# yum install -y package	(Installing a rpm package without prompting for y/n)

# yum remove package		(Removing a package)

# yum -y remove package		(Removing a package without prompting for y/n)

# yum update package		(Updating a package and without prompting for y/n)
# yum -y update package

# yum list package		(List of packages)

# yum search package		(Searching for a package)

# yum info package		(Getting info of package)

# yum list | less		(List of available packages)

# yum provides /etc/httpd/conf/httpd.conf	(Getting information of packages for a specific file belongs to which rpm)

# yum check-update		(Checking available updates)

# yum grouplist			(List all available groups package)

Installing, updating and removing a group package:

# yum install ”MySQL Database”
# yum update ”MySQL Database”
# yum remove ”MySQL Database”

Listing repository: 

# yum repolist
# yum repolist all

Installing a package through a specific repository:

# yum --enablerepo=epel install phpmyadmin

Interactive yum shell which is providing you the shell where you can run multiple commands there:

# yum shell

# yum clean all			(Cleaning of cache)

# yum provides */genkey		(Checking which rpm is required for the command)