Linux Classroom notes 27/July/2026

package manager:

• linux
  • debian : apt
    • debian
    • ubuntu
    • rocky linux
  • redhat yum or dnf
    • redhat
    • centos
    • amazonlinux
• windows: choco, winget
  • windows server
  • windows home
  • windows pro
  • mssql
• mac: homebrew
  • redhat family
• ios/apk
  • mobile packages: apk

## ubuntu

sudo apt update - update packages info in apt repository

sudo apt list --upgradable - get all list of packages upgradable

sudo apt-get install openjdk-11-jre-headless -y

sudo apt install apache2 -y 

# redhat 

sudo yum update 

sudo yum install httpd -y 


sudo dnf update -y

sudo dnf install httpd -y


## add packages repo and install 

sudo dnf install -y dnf-plugins-core
sudo dnf config-manager --add-repo https://rpm.releases.hashicorp.com/RHEL/hashicorp.repo
sudo dnf install -y terraform