Learn Linux Cli Package Management

Note : these commands for Redhat linux versions

Example 1 :

rpm + { -ivh } + package.rpm

Usage : install any rpm package in linux

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Example 2 :

rpm + { -Uvh } + package.rpm

Usage : Update any rpm package in linux

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Example 3 :

rpm + { -evh } + package.rpm

Usage : Remove any rpm package in linux

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Example 4 :

rpm + { -qa }

Usage : display all rpm packages existing in the system and each document path of them

rpm -qa | wc

Usage : return only the total number of rpm packages existing in the system

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Example 5 :

rpm -q { package_name }

Usage : to find if specific package is installed on the system or not

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Example 6 :

rpm -k --nosignature { package_name }

Usage : to check if this package trusted or not

if the result contain sha1 md5 ok that's meaning this package is trusted and you can use it safely

rpm command VS yum command

rpm => install package without caring about its all dependencies

yum => do resolve to all dependencies which have to be installed on the system to let the package you want to install work perfectly without problems

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Example 1 :

yum -y { package_name }

(-y) => to answer Yes to all questions yum command will ask you during the installation

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Example 2 :

yum update { package_name }

Usage : update any package installed on the system with yum command

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Example 3 :

yum -y update

Usage : update all packages existing on the system at once

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Note : these commands for Redhat linux versions

Note : these commands for Debian linux versions

Example 1 :

apt update

Usage : check if there are new updates for all packages and dependencies database

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Example 2 :

apt upgrade

Usage : upgrade all packages at once if there is new update

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Example 3 :

apt install { package_name }

Usage : install new packages with apt command

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Example 4 :

apt install {package1} {package2} {package3}

Usage : install multiple packages with apt at once

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Example 5 :

apt install {package_name}={version_number}

Usage : install a specific version of package

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Example 6 :

apt remove {package_name}

Usage : remove installed packages with apt command

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Example 7 :

apt purge {package_name}

Usage : removes everything related to a package including the configuration files

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apt remove   VS   apt purge

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

apt purge => removes the binaries of a package. It leaves residue configuration files

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Example 8 :

apt search {package_name}

Usage : search for specific package

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Example 9 :

apt show {package_name}

Usage : display content of package

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Example 10 :

apt list --upgradeable

Usage : list upgradable and installed versions

apt list --installed

Usage : list all installed packages

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How to Clean your system with apt command

apt autoremove Command

Usage : This command removes libs and packages that were installed automatically to satisfy the dependencies of an installed package. If the package is removed, these automatically installed packages, though useless, remains in the system.