Install a package with YUM

yum install <package name>

Install an RPM package

rpm -ivh <package name>

Note: -h -v are not necessary, as -i is the install switch, but the -h -v switches will provides output during install, which most people like.

Update all packages with YUM

yum update

or

yum upgrade

 'yum update' and 'yum upgrade' both update all the presently installed packages to the latest versions that are available in the repositories. However, once finished, 'yum upgrade' also removes all of the obsolete packages from the system. In short, update does NOT remove packages and upgrade does remove packages.

remove packages with YUM

yum remove <package name>

remove a package with RPM

rpm -e <package>

if you want to remove the package but not the dependencies you can use

rpm -e --nodeps 

For more output logging use -v the verbose switch.

update a single package with YUM

yum update <pacakge>

or

yum upgrade <package>

'yum update' will not remove obsolete packages from the system.

search for available packages by keyword using yum

yum search <keyword>

list all YUM packages

yum list installed

Display detailed information about a package with YUM

yum info <package>

Clean the YUM cache

yum clean all

Check for updates without installing them in YUM

yum check-update

Install a group of packages using YUM

yum groupinstall <group>

Remove unused dependencies with YUM

yum autoremove

List enabled and disabled repositories in YUM

yum repolist

Generate metadata cache in YUM

yum makecache

Cleaning YUM Cache

Over time, YUM accumulates cache data that can take up disk space. Running 'yum clean all' frees the space. However, caching repositories is good for performance so it is not bad to run 'yum makecache' to also download and cache metadata for enabled repositories.

 how to find RPM package which contains particular script, application or command using YUM

yum provides <filename or command>

Updating the package database in apt (not updating software just the repository)

apt update

Upgrade all packages using apt

apt upgrade

or

apt full-upgrade

full-upgrade works the same as upgrade except that if system upgrade needs the removal of a package already installed on the system, it will do that. Whereas, the normal upgrade command won’t do this.

What is the difference between apt update and apt upgrade?

apt update only updates the database of the packages

apt upgrade will upgrades the installed packages to the newer version

You can combine them to update the database and then upgrade the packages to ensure you get the latest software updates

apt update && apt upgrade -y

Install a package with apt

apt install <package>

or to install multiple packages

apt install <package_1> <package_2> <package_3>

install a package, but don’t want to upgrade, it if it is already installed in apt

apt install <package_name> --no-upgrade

only upgrade packages, not install them using apt

apt install <package> --only-upgrade

How to install a specific version of an application using apt

apt install <package>=<version_number>

How to remove installed packages with apt

apt remove <package>

or

apt purge <package>

apt remove just removes the binaries of a package. It leaves residue configuration files.

apt purge removes everything related to a package including the configuration files.

Search for packages in apt

apt search <search term>

See package info in apt

apt show <package>

See all installed packages using apt

apt list --installed

List all upgradable packages using apt

apt list --upgradable

Using apt how do you removes libs and packages that were installed automatically to satisfy the dependencies of an installed package. If the package is removed.

apt autoremove

See all installed applications using RPM

rpm -qa

often piped to grep to search for an installed app, e.g. rpm -qa | grep firefox

Check for an installed package using RPM

rpm -q <package>

List all files of an installed RPM package using RPM

rpm -ql <package>

List Recently Installed RPM Packages using RPM

rpm -qa --last

Upgrade a RPM Package using RPM

rpm -Uvh <package>

-U is the upgrade switch. The -v and -h provide for verbose output, which many admins prefer.

See information for installed RPM using RPM

rpm -qi <package>

To get the Information of RPM Package Before Installing use:

rpm -qip <package>

Verify an RPM Package package for an installed rpm (compare information of installed files of the package against the rpm database)

rpm -Vp <package>

To verify all the installed packages use -a with no arguments

rpm -Va

Import an RPM GPG key in RPM

rpm --import <GPG Key>

Rebuild Corrupted RPM Database

1. cd /var/lib
2. rm __db*
3. rpm --rebuilddb
4. rpmdb_verify Packages

What are the different commands for DNF (Dandified YUM) compared with YUM (Yellowdog Updater Modified)?

For basic package management routines, these YUM and DNF commands adhere to the same syntax, e.g. installing a package is yum install <package> and dnf install <package> respectively.

However, dnf has some additional transactional commands

dnf history (list history of dnf commands)

dnf history undo <history id>

dpkg command to install a DEB package

dpkg -i <package>

or

dpkg --install <package>

dpkg command to remove a DEB package

dpkg -r

or

dpkg --remove

or

dpkg -P

or

dpkg --purge

-r or --remove removes every file belonging to the specific package except the configuration files. -P or --purge completely removes every fie belonging to the specific package, including the configuration files. This is the complete uninstall option.

list all DEBs installed via dpkg

dpkg -l

Difference between RPM and YUM/DNF

Difference between dpkg and apt or apt-get

RPM and dpkg are low level package managers. YUM, DNF, APT and APT-GET are high-level package managers. In order to perform the task of package management effectively, you need to be aware that you will have two types of available utilities: low-level tools (which handle in the backend the actual installation, upgrade, and removal of package files), and high-level tools (which are in charge of ensuring that the tasks of dependency resolution and metadata searching -”data about the data”- are performed).

Update all packages using YUM without being prompted

yum update -y

or

yum upgrade -y

Upgrade will remove obsolete packages from your system and update will not.

RPM command to list configuration files for a package

rpm -qc <package>

Find package associated with a command using RPM

rpm -qf /path/to/commandbinary